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Best Bt Telephone Junction Box of 2026
Last updated on 05/01/2026
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1
BT66b Grey external use enclosure for BT Openreach Telephone cable above ground weatherproof connection junction box + 6 waterproof gel filled wire joining crimps + lead clamps + mounting screws
WITPOCE
Why we love it
Protects cables from natural elements.
Minimizes faults and saves money.
Multipurpose and easy installation.
Main Highlights
JOIN CABLES EXTERNALLY with this Genuine BT 66b external joint box you will be able to house and protect cable connections from the elements preventing corrosion or oxidation of the copper wires xxx
USE GENUINE COMPONENTS when making alterations to the BT Openreach, Virgin Media or Sky phone broadband supply as this keep consistency, minimises faults and avoids expensive engineer call out charges
COMPACT UV STABALIZED gray box measuring approximately 125mm x 90mm x 42mm is just the right size to house a number of 8A, 8B, UY2 and all similar Gel filled scotch crimps or outdoor block terminals
6 x 8A 2 WIRE GEL CRIMPS supplied making it easy to join solid core inner conductors measuring up to 0.5mm thick. Simply insert unstripped wires and press firmly closed until the cap is flat with body
FOR A VARIETY OF USES but typically used to terminate the main BT Dropwire from telephone pole or underground supply lead. Can also be used to fix or repair cut or damaged cables on a property wall
Included components: Screws, Clamps and Crimps
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9.9
Exceptional
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9.9
Exceptional
WITPOCE
BT66b Grey external use enclosure for BT Openreach Telephone cable above ground weatherproof connection junction box + 6 waterproof gel filled wire joining crimps + lead clamps + mounting screws
Check Price
Show More
Why we love it
Protects cables from natural elements.
Minimizes faults and saves money.
Multipurpose and easy installation.
Main Highlights
JOIN CABLES EXTERNALLY with this Genuine BT 66b external joint box you will be able to house and protect cable connections from the elements preventing corrosion or oxidation of the copper wires xxx
USE GENUINE COMPONENTS when making alterations to the BT Openreach, Virgin Media or Sky phone broadband supply as this keep consistency, minimises faults and avoids expensive engineer call out charges
COMPACT UV STABALIZED gray box measuring approximately 125mm x 90mm x 42mm is just the right size to house a number of 8A, 8B, UY2 and all similar Gel filled scotch crimps or outdoor block terminals
6 x 8A 2 WIRE GEL CRIMPS supplied making it easy to join solid core inner conductors measuring up to 0.5mm thick. Simply insert unstripped wires and press firmly closed until the cap is flat with body
FOR A VARIETY OF USES but typically used to terminate the main BT Dropwire from telephone pole or underground supply lead. Can also be used to fix or repair cut or damaged cables on a property wall
Included components: Screws, Clamps and Crimps
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Value for Money
2
1STec Large External Virgin Media Big Junction Box for Housing Telephone TV Superhub Modem Leads Electrical Connections on External Wall Joining 2/3 Way F-Connector Splitters to Main Outside Drop Wire
1STec
Why we love it
Replaces older damaged units.
Improved secure locking design.
Durable and UV stabilized.
Main Highlights
REPLACES BROWN VERSION – New Improved Enclosure for replacing older damaged NTL units in order to protect vulnerable wiring from vandalism and the harsh elements
IMPROVED SECURE DESIGN – Will not continuously pop open like the older versions as there is a self-locking tab to keep things in place once the lid is closed correctly
UV STABILISED AND DURABLE – Does not degrade. Will last for many years due to the use of super strong tough high-density UV stable polyurethane in its construction
MULTI PURPOSE APPLICATION – Can be used for a number of purposes including Low voltage Lighting, Freeview, Satellite TV, CCTV, Aerials, Alarms and Remote Door Entry
SPLASH AND WEATHERPROOF - Cable entry points are at the bottom of the unit making water ingress almost impossible. This also helps to prevent condensation by remaining breathable
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9.7
Exceptional
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9.7
Exceptional
1STec
1STec Large External Virgin Media Big Junction Box for Housing Telephone TV Superhub Modem Leads Electrical Connections on External Wall Joining 2/3 Way F-Connector Splitters to Main Outside Drop Wire
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Why we love it
Replaces older damaged units.
Improved secure locking design.
Durable and UV stabilized.
Main Highlights
REPLACES BROWN VERSION – New Improved Enclosure for replacing older damaged NTL units in order to protect vulnerable wiring from vandalism and the harsh elements
IMPROVED SECURE DESIGN – Will not continuously pop open like the older versions as there is a self-locking tab to keep things in place once the lid is closed correctly
UV STABILISED AND DURABLE – Does not degrade. Will last for many years due to the use of super strong tough high-density UV stable polyurethane in its construction
MULTI PURPOSE APPLICATION – Can be used for a number of purposes including Low voltage Lighting, Freeview, Satellite TV, CCTV, Aerials, Alarms and Remote Door Entry
SPLASH AND WEATHERPROOF - Cable entry points are at the bottom of the unit making water ingress almost impossible. This also helps to prevent condensation by remaining breathable
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3
1STec Virgin Media Junction Box for Housing Telephone TV Superhub Modem Leads Electrical Connections on External Wall Joining 2/3 Way F-Connector Splitters to Main Outside Drop Wire (Small External)
1STec
Why we love it
Improved durability enhances product longevity.
Advanced self-locking design boosts security.
Resistant to weather and vandalism.
Main Highlights
REPLACES GREY OR BROWN VERSION – New Improved replacement cable enclosure cover for replacing older damaged NTL Telewest units in order to protect exposed wiring from vandalism and the harsh elements
NEW & IMPROVED SECURE DESIGN – Will not continuously pop open like the older versions as there is a self-locking tab to keep things in place once the slide down to lock on lid is correctly closed
UV STABILISED AND EXTREMELY DURABLE – Will not degrade like the original boxes. Will last for many years outside as these are constructed using super strong & tough high-density UV stable polyurethane
MULTI PURPOSE EXTERNAL APPLICATION – Used for low voltage lighting connections, Freeview, Sky Satellite TV 2 3 way splitters, CCTV, Coaxial Aerial repair joints, Alarms & Remote Door Entry systems
SPLASH AND WEATHERPROOF - Cable entry points are at the bottom of the unit making water ingress almost impossible. This also helps to prevent condensation by remaining breathable
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9.7
Exceptional
Check Price
9.7
Exceptional
1STec
1STec Virgin Media Junction Box for Housing Telephone TV Superhub Modem Leads Electrical Connections on External Wall Joining 2/3 Way F-Connector Splitters to Main Outside Drop Wire (Small External)
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Show More
Why we love it
Improved durability enhances product longevity.
Advanced self-locking design boosts security.
Resistant to weather and vandalism.
Main Highlights
REPLACES GREY OR BROWN VERSION – New Improved replacement cable enclosure cover for replacing older damaged NTL Telewest units in order to protect exposed wiring from vandalism and the harsh elements
NEW & IMPROVED SECURE DESIGN – Will not continuously pop open like the older versions as there is a self-locking tab to keep things in place once the slide down to lock on lid is correctly closed
UV STABILISED AND EXTREMELY DURABLE – Will not degrade like the original boxes. Will last for many years outside as these are constructed using super strong & tough high-density UV stable polyurethane
MULTI PURPOSE EXTERNAL APPLICATION – Used for low voltage lighting connections, Freeview, Sky Satellite TV 2 3 way splitters, CCTV, Coaxial Aerial repair joints, Alarms & Remote Door Entry systems
SPLASH AND WEATHERPROOF - Cable entry points are at the bottom of the unit making water ingress almost impossible. This also helps to prevent condensation by remaining breathable
Show More
4
DRUT BT Master (2/4A) Telephone Socket Face Plate Plug With Box Surface, Single 70x70x30mm
DRUT
Why we love it
Easy to install anywhere.
Durable and long-lasting materials.
Sleek design fits any decor.
Main Highlights
The BT Master (2/4A) Telephone Socket Face Plate Plug With Box Surface is a single socket unit that measures 70 x 70 x 30mm. It is designed to be surface-mounted, making it easy to install in a variety of settings.
This unit is compatible with the BT Master (2/4A) telephone system, allowing you to connect your phone or other compatible devices to your home or office telephone network. The faceplate plug is made from durable materials that are built to last, and the box surface provides a secure and protective housing for the socket.
With its compact size and sleek design, this BT Master telephone socket is a practical and stylish choice for any home or office environment. So whether you're setting up a new phone system or upgrading your existing one, the BT Master (2/4A) Telephone Socket Face Plate Plug With Box Surface is a reliable and convenient solution.
Surface mounted 2/4A master telephone socket with screw connections. Master socket contains surge suppressor ring capacitor and test resistor.
Dimensions (mm) 70 x 70 x 30 W x H x D
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9.6
Superb
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9.6
Superb
DRUT
DRUT BT Master (2/4A) Telephone Socket Face Plate Plug With Box Surface, Single 70x70x30mm
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Show More
Why we love it
Easy to install anywhere.
Durable and long-lasting materials.
Sleek design fits any decor.
Main Highlights
The BT Master (2/4A) Telephone Socket Face Plate Plug With Box Surface is a single socket unit that measures 70 x 70 x 30mm. It is designed to be surface-mounted, making it easy to install in a variety of settings.
This unit is compatible with the BT Master (2/4A) telephone system, allowing you to connect your phone or other compatible devices to your home or office telephone network. The faceplate plug is made from durable materials that are built to last, and the box surface provides a secure and protective housing for the socket.
With its compact size and sleek design, this BT Master telephone socket is a practical and stylish choice for any home or office environment. So whether you're setting up a new phone system or upgrading your existing one, the BT Master (2/4A) Telephone Socket Face Plate Plug With Box Surface is a reliable and convenient solution.
Surface mounted 2/4A master telephone socket with screw connections. Master socket contains surge suppressor ring capacitor and test resistor.
Dimensions (mm) 70 x 70 x 30 W x H x D
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5
1STec BT77A 2 or 3 Pair Telephone Cable Internal use IDC Punch Down Junction Box for Joining or Repairing CW1308 to Dropwire or CW1412 Down Lead (BT 77 A, White)
1STec
Why we love it
Repairs damaged telephone cables easily.
No stripping needed for connections.
Simple installation with clear instructions.
Main Highlights
BT 77A IDC JUNCTION BOX - Used internally to repair damaged BT, Sky or Virgin Media Telephone cables that have been accidentally cut through or simply to change the colour from black external cable to White
4 OR 6 WIRE CONNECTOR - These Insulation Displacement Connectors or IDC joiners are designed for 2 or 3 pair CW1308 Phone or Broadband DATA cables containing 4 or 6 internal copper conductors
INSULATION DISPLACEMENT - There is no need to strip the internal conductors as a connection is made automatically when the internal wires are pressed into their seated position using the IDC tool supplied
SIMPLE MIRROR INSTALLATION - These junction boxes can be used to join two similar cables by Simply mirroring the colours or by matching the cable numbering as supplied by the BT NTE5a master socket
USE IDC PUNCH DOWN TOOL - Lay each conductor over the IDC Block and press into position with the tool in its correct position making sure that the cable is pressed to the lower part of the IDC block cutters
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9.4
Superb
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9.4
Superb
1STec
1STec BT77A 2 or 3 Pair Telephone Cable Internal use IDC Punch Down Junction Box for Joining or Repairing CW1308 to Dropwire or CW1412 Down Lead (BT 77 A, White)
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Show More
Why we love it
Repairs damaged telephone cables easily.
No stripping needed for connections.
Simple installation with clear instructions.
Main Highlights
BT 77A IDC JUNCTION BOX - Used internally to repair damaged BT, Sky or Virgin Media Telephone cables that have been accidentally cut through or simply to change the colour from black external cable to White
4 OR 6 WIRE CONNECTOR - These Insulation Displacement Connectors or IDC joiners are designed for 2 or 3 pair CW1308 Phone or Broadband DATA cables containing 4 or 6 internal copper conductors
INSULATION DISPLACEMENT - There is no need to strip the internal conductors as a connection is made automatically when the internal wires are pressed into their seated position using the IDC tool supplied
SIMPLE MIRROR INSTALLATION - These junction boxes can be used to join two similar cables by Simply mirroring the colours or by matching the cable numbering as supplied by the BT NTE5a master socket
USE IDC PUNCH DOWN TOOL - Lay each conductor over the IDC Block and press into position with the tool in its correct position making sure that the cable is pressed to the lower part of the IDC block cutters
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6
4 Pair BT Telephone Phone IDC Terminal Block Plate Coupler Junction Box Unit 7/8A
DRUT
Why we love it
Versatile compatibility for telecommunication needs.
Secure and stable connections guaranteed.
Durable construction withstands daily use.
Main Highlights
Versatile Compatibility: Compatible with BT telephone systems, this junction box unit supports 4 pairs of connections, providing flexibility for various telecommunication needs.
IDC Terminal Blocks: Equipped with IDC (Insulation Displacement Connection) terminal blocks, this unit ensures secure and stable connections without the need for soldering or special tools.
Durable Construction: Built to last, the junction box unit features a sturdy construction that withstands daily use and environmental conditions.
Easy Installation: With its user-friendly design, installation is a breeze. Simply connect the telephone cables to the terminal blocks and mount the unit securely in place.
Space-Saving Design: Compact and space-efficient, this junction box unit can be installed discreetly, saving valuable space in your telecommunications setup.
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9.4
Superb
Check Price
9.4
Superb
DRUT
4 Pair BT Telephone Phone IDC Terminal Block Plate Coupler Junction Box Unit 7/8A
Check Price
Show More
Why we love it
Versatile compatibility for telecommunication needs.
Secure and stable connections guaranteed.
Durable construction withstands daily use.
Main Highlights
Versatile Compatibility: Compatible with BT telephone systems, this junction box unit supports 4 pairs of connections, providing flexibility for various telecommunication needs.
IDC Terminal Blocks: Equipped with IDC (Insulation Displacement Connection) terminal blocks, this unit ensures secure and stable connections without the need for soldering or special tools.
Durable Construction: Built to last, the junction box unit features a sturdy construction that withstands daily use and environmental conditions.
Easy Installation: With its user-friendly design, installation is a breeze. Simply connect the telephone cables to the terminal blocks and mount the unit securely in place.
Space-Saving Design: Compact and space-efficient, this junction box unit can be installed discreetly, saving valuable space in your telecommunications setup.
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7
1STec 2/3a Surface Mount Telephone Extension Socket + Backbox + IDC Tool Line Jack for Creating Extra Phone Point Connections (2/3a + Back Box)
1STec
Why we love it
Compact design for easy installation.
Professional-grade IDC connectors provided.
Compatible with solid core cables.
Main Highlights
STANDARD SURFACE MOUNT 2/3A - These are the smaller type Telephone Sockets that are used to install additional outlets on an existing system with a pre-installed Master socket
PROFESSIONAL IDC CONNECTORS - Connect like the professionals by simply pressing the coloured conductors into position by simply pressing them down with the IDC tool included
EASY STANDARD CONNECTIONS - Extensions are fed from connectors 2, 3 & 5 in a Master socket to numbers 2, 3 & 5 in the new Extension. You will not need connector 3 for Broadband
USE SOLID CORE CW1308 CABLE - Insulation Displacement Connectors (IDC) are intended to accept solid core copper cable. There is no need to strip the conductors before insertion
COMPACT TELEPHONE SOCKET - Measurements are approximately 68mm x 68mm x 29mm including the Back Box. These Plain Line Jacks are manufactured by Austin Taylor
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9.4
Superb
Check Price
9.4
Superb
1STec
1STec 2/3a Surface Mount Telephone Extension Socket + Backbox + IDC Tool Line Jack for Creating Extra Phone Point Connections (2/3a + Back Box)
Check Price
Show More
Why we love it
Compact design for easy installation.
Professional-grade IDC connectors provided.
Compatible with solid core cables.
Main Highlights
STANDARD SURFACE MOUNT 2/3A - These are the smaller type Telephone Sockets that are used to install additional outlets on an existing system with a pre-installed Master socket
PROFESSIONAL IDC CONNECTORS - Connect like the professionals by simply pressing the coloured conductors into position by simply pressing them down with the IDC tool included
EASY STANDARD CONNECTIONS - Extensions are fed from connectors 2, 3 & 5 in a Master socket to numbers 2, 3 & 5 in the new Extension. You will not need connector 3 for Broadband
USE SOLID CORE CW1308 CABLE - Insulation Displacement Connectors (IDC) are intended to accept solid core copper cable. There is no need to strip the conductors before insertion
COMPACT TELEPHONE SOCKET - Measurements are approximately 68mm x 68mm x 29mm including the Back Box. These Plain Line Jacks are manufactured by Austin Taylor
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8
DAVOX BT Openreach NTE5C MK2 Master Telephone socket + MK4 Faceplate + Back Box - Combination Socket for Fibre Broadband + Filtered Telephone Main Line BT431a for Phone RJ11/RJ45 Data
DAVOX
Why we love it
Reduces static and interference.
Improves broadband speeds significantly.
Easy, tool-less installation process.
Main Highlights
NTE5C+MK4+BACK BOX - This new improved model reduces Static and Interference producing better Telephone Sound Quality and Improved Broadband Speeds
BUILT IN MICROFILTER - Integrated VDSL+ADSL Bell Wire Filter in the MK4 Front plate negates the need for microfilters at the Master or on your Extension Sockets
NO IDC TOOL NEEDED - Self Crimping Tool-Less MK2 NTE5c with Clear Cam Lock Terminations. Simply insert Unstripped conductors and Close the Clip to connect
Supplied with 2 x M3.5 Faceplate screws + 2 back box Screws, NTE5c + MK4 front Plate, Back Box
IMPROVES BROADBAND - Many users report an improvement in their download and upload speeds. This is due to the better filters that are fitted to these newer units
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9.2
Superb
Check Price
9.2
Superb
DAVOX
DAVOX BT Openreach NTE5C MK2 Master Telephone socket + MK4 Faceplate + Back Box - Combination Socket for Fibre Broadband + Filtered Telephone Main Line BT431a for Phone RJ11/RJ45 Data
Check Price
Show More
Why we love it
Reduces static and interference.
Improves broadband speeds significantly.
Easy, tool-less installation process.
Main Highlights
NTE5C+MK4+BACK BOX - This new improved model reduces Static and Interference producing better Telephone Sound Quality and Improved Broadband Speeds
BUILT IN MICROFILTER - Integrated VDSL+ADSL Bell Wire Filter in the MK4 Front plate negates the need for microfilters at the Master or on your Extension Sockets
NO IDC TOOL NEEDED - Self Crimping Tool-Less MK2 NTE5c with Clear Cam Lock Terminations. Simply insert Unstripped conductors and Close the Clip to connect
Supplied with 2 x M3.5 Faceplate screws + 2 back box Screws, NTE5c + MK4 front Plate, Back Box
IMPROVES BROADBAND - Many users report an improvement in their download and upload speeds. This is due to the better filters that are fitted to these newer units
Show More
9
1STec Genuine BT Openreach NTE5c MK2 Main Master Telephone Socket Faceplate Wall Plate Updated with Tool Less IDC Cable Connections (NTE5 C Faceplate Only)
1STec
Why we love it
Genuine quality from BT Openreach.
Easy tool-less installation process.
Compatible with standard phone cables.
Main Highlights
NTE5c SOCKET FACE PLATE - Genuine BT Openreach MK11 Telephone Master Socket
TOOL-LESS CONNECTIONS - Easily Removable Clip Fit Front with Press Type Connections
FOR STANDARD PHONE CABLE - Accepts Telephone Cables with Solid Core Conductors
COLOUR INSTRUCTIONS - comes with easy-to-follow BT colour-coded connection instructions
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9.2
Superb
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9.2
Superb
1STec
1STec Genuine BT Openreach NTE5c MK2 Main Master Telephone Socket Faceplate Wall Plate Updated with Tool Less IDC Cable Connections (NTE5 C Faceplate Only)
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Show More
Why we love it
Genuine quality from BT Openreach.
Easy tool-less installation process.
Compatible with standard phone cables.
Main Highlights
NTE5c SOCKET FACE PLATE - Genuine BT Openreach MK11 Telephone Master Socket
TOOL-LESS CONNECTIONS - Easily Removable Clip Fit Front with Press Type Connections
FOR STANDARD PHONE CABLE - Accepts Telephone Cables with Solid Core Conductors
COLOUR INSTRUCTIONS - comes with easy-to-follow BT colour-coded connection instructions
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10
1STec BT Openreach NTE5C MK2 + Latest MK4 Tool-Less Filtered Main Master Combination 2 Socket Faceplate Without Back Box for High Speed Fibre Broadband & Telephone Line BT431a Phone + RJ11/RJ45 Data
1STec
Why we love it
Faster modem performance enhancements.
Built-in microfilter for convenience.
No IDC tool needed during setup.
Main Highlights
FASTER MODEM PERFORMANCE - These newest improved versions reduces static buildup & interference producing clearer call sound quality and better connection speeds
BUILT IN MICROFILTER - Integrated VDSL ADSL ADSL2+ Bell Wire Filter in the MK4 Front plate negates the need for microfilters even on your additional extension sockets
NO IDC TOOL NEEDED - Redesigned self crimping locking tabs having clear Cam Lock terminations. Simply insert unstripped conductors then close clip to make it connect
INSTALL INSTRUCTIONS - Supplied with 2 x M3.5 screws to fit standard UK recessed, surface or cavity boxes the NTE 5c + MK 4 accompanied by full colour installation guide
IMPROVES INTERNET - Many users report an improvement in their download and upload results. This is due to the superior filters that are fitted to our newer units
Show More
9.2
Superb
Check Price
9.2
Superb
1STec
1STec BT Openreach NTE5C MK2 + Latest MK4 Tool-Less Filtered Main Master Combination 2 Socket Faceplate Without Back Box for High Speed Fibre Broadband & Telephone Line BT431a Phone + RJ11/RJ45 Data
Check Price
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Why we love it
Faster modem performance enhancements.
Built-in microfilter for convenience.
No IDC tool needed during setup.
Main Highlights
FASTER MODEM PERFORMANCE - These newest improved versions reduces static buildup & interference producing clearer call sound quality and better connection speeds
BUILT IN MICROFILTER - Integrated VDSL ADSL ADSL2+ Bell Wire Filter in the MK4 Front plate negates the need for microfilters even on your additional extension sockets
NO IDC TOOL NEEDED - Redesigned self crimping locking tabs having clear Cam Lock terminations. Simply insert unstripped conductors then close clip to make it connect
INSTALL INSTRUCTIONS - Supplied with 2 x M3.5 screws to fit standard UK recessed, surface or cavity boxes the NTE 5c + MK 4 accompanied by full colour installation guide
IMPROVES INTERNET - Many users report an improvement in their download and upload results. This is due to the superior filters that are fitted to our newer units
Show More