10 Best Garden Sprayers 20 Litre Pressure in The UK

Last updated on 27/05/2025

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SYLSTAR Battery Powered Knapsack Sprayer 12L,80PSI Pressure Spray Compatible With Makita 18V Battery,Backpack Sprayer With 5 Nozzles,39.3'' Telescopic Wand,For Garden&Lawn(Includ 2.0Ah/21V Battery)

8% OffFree Shipping

Why We Love It

Compatible with Makita battery.
Powerful 80 PSI spraying force.
Comfortable, ergonomic design.

Main Highlights

【Compatible with Makita Battery】The weed sprayer features a digatle voltage display that clearly shows the battery usage, allowing you to monitor the power level in real time. The built-in battery discharge protection automatically shuts off the sprayer when the voltage drops below 14V, helping to extend the battery life and ensure long-term use.
【80PSI Strong Spraying Force】The knapsack sprayer features an impressive 80 PSI (5.5Bar) pressure powered by a 3200 rpm high-speed motor. It offers a fully adjustable PSI knob to suit all your spraying needs, whether you're applying a fine mist to plants or need a strong stream for distant spots.
【15 Tanks Spraying in One Go】With a full charge, this water sprayer can spray up to 15 full tanks of water and mixed solution. The electric sprayer is equipped with a 2.0Ah 21V battery and a 110-240V charger, providing reliable and consistent power for smooth operation. The long reach sprayer makes it perfect for a variety of spraying tasks, from garden and lawn care to larger agricultural areas.
【Ergonomic Knapsack Sprayer】The backpack battery sprayer features ergonomic design with wide padded straps and waist support to minimize fatigue during prolonged use. Its semi-transparent tank enables quick liquid level checks, while the extendable 39.3-inch telescopic wand and 5 interchangeable nozzles adapt to various spraying needs. An upgraded storage compartment organizes accessories.
【Service Guarantee】This electric garden sprayer is suitable for a variety of tasks, including weed control, lawn fertilization, applying fertilizers or herbicides, car cleaning, pet baths, and yard watering. It comes with a one-year worry-free warranty and 24/7 online customer support. If you have any questions about the product, feel free to contact us for assistance.

Electric Knapsack Pressure Sprayer 20L Garden Weed Killer | 8000 mah Rechargeable Battery Cordless | Weed Killer Pressure Sprayer Pump Action High Pressure Long Reach Sprayer…

Why We Love It

Lightweight and portable design.
Intelligent protective battery included.
Environmental-friendly product material.

Main Highlights

💭 Backpack sprayer is suitable for cleaning in various occasions, garden grass and agricultural pesticides, air safety and humidity conversion. Water is strong, fog is like smoke, spraying work is more convenient
💭 Lithium battery-powered, lighter weight and portability than traditional lead-acid batteries
💭 Intelligent protective battery
💭 Product weight: 5kg
💭 Water pump: 3.5 pure copper core high-pressure return water pump
💭 Spray bar: 80 cm stainless steel telescopic bar
💭 8000 mah Rechargeable Battery
💭 Supplied with charger

Oregon Backpack Sprayer with Lance and 4 Adjustable Spray Nozzle, Suitable For Pesticide, Lawn Feed, Weed and Moss Killer, Reliable Outdoor Garden & Lawn Care, Knapsack Sprayer Garden Tool, 20 Litres

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Why We Love It

Ergonomic and comfortable wear.
Versatile nozzle options included.
Large, pressurized 20L tank.

Main Highlights

𝗠𝗨𝗟𝗧𝗜-𝗣𝗨𝗥𝗣𝗢𝗦𝗘 𝗚𝗔𝗥𝗗𝗘𝗡 𝗦𝗣𝗥𝗔𝗬𝗘𝗥: Suitable for use with insecticides and herbicides for weed control, as well as environmental disinfection to maintain the perfect lawn and garden
𝟮𝟬 𝗟𝗜𝗧𝗥𝗘 𝗖𝗔𝗣𝗔𝗖𝗜𝗧𝗬 𝗧𝗔𝗡𝗞: With a pressurised chamber, our high pressure sprayer is easy to use and lightweight for fast, effective gardening whilst protecting you from harsh chemicals
𝗙𝗨𝗟𝗟 𝗞𝗜𝗧 𝗜𝗡𝗖𝗟𝗨𝗗𝗘𝗗: Comes with flexible tube and spray lance of +/- 2.0 meters, a shoulder strap, hose, spare seal kit for quick repairs and 4 choices of nozzles, flat fan and adjustable cone
𝗘𝗥𝗚𝗢𝗡𝗢𝗠𝗜𝗖 𝗗𝗘𝗦𝗜𝗚𝗡: The reverse of the sprayer tank is ergonomically shaped to fit against the user's back, making it comfortable to wear for long periods; ideal for use in large gardens
𝗣𝗥𝗢𝗙𝗘𝗦𝗦𝗜𝗢𝗡𝗔𝗟 𝗣𝗘𝗥𝗙𝗢𝗥𝗠𝗔𝗡𝗖𝗘: Crafted with robust high-quality materials to ensures longevity, reliability and versatility from heavy duty weed control to flower bed watering

12L & 20L Electric Knapsack Pressure Sprayer | Rechargeable Battery-Powered Backpack Sprayer for Garden and Agricultural Use | 8000 & 6000mAh Lithium Battery | Blue (20L)

Why We Love It

Rechargeable battery for convenience.
High-pressure pump for efficiency.
Durable design for longevity.

Main Highlights

RECHARGEABLE & CORDLESS OPERATION: Equipped with a 6000mAh (12L) or 8000mAh (20L) lithium battery, providing long-lasting performance with no manual pumping required. Includes an intelligent protection system to extend battery life.
HIGH-PRESSURE WATER PUMP: Fitted with a 3.5 pure copper core high-pressure return pump, ensuring consistent and powerful spraying for efficient coverage in gardens, greenhouses, and agricultural fields.
DURABLE & ERGONOMIC DESIGN: Made from heavy-duty PP plastic, this sprayer is built to last, offering resistance to wear and chemicals. The adjustable stainless steel telescopic spray wand (80cm for 20L model) allows for precise application.
MULTIPLE NOZZLES FOR VERSATILE USE: Comes with various replaceable nozzles, allowing you to switch between misting, jet spraying, and fine application—ideal for watering, disinfecting, and pest control.
LARGE CAPACITY & COMFORTABLE WEAR: Choose between a 12L or 20L tank, reducing refill frequency for large areas. Designed as a backpack sprayer with padded straps, ensuring comfortable use for extended periods.

Draper Trolley Pressure Sprayer 15L | EPDM Pump Garden Sprayer | Weed Killer Sprayer Pump | Pesticides, Insecticides, Fungicides | 82583

Why We Love It

Versatile in usage applications.
High performance pump included.
Robust, high-density construction.

Main Highlights

High Pressure - High performance pump to ensure high pressure for a cordless pressure sprayer.
Portable - Pump garden sprayer on wheels with handle for easy manoeuverability.
Large Tank - Large 15L tank for longer use and harder tasks.
Features - This powerhouse comes with an adjustable spray pattern tip and a safety pressure release valve.

Faithfull Pressure Sprayer Knapsack - 16 Litre Capacity Garden Spray Pump with 3 Adjustable Nozzles & Service kit

4% OffFree Shipping

Why We Love It

Durability ensures long-term use.
Convenient lightweight design.
Continuous use with trigger lock.

Main Highlights

16L Capacity & Durable Construction – Ideal for larger gardens, this sprayer holds more for extended use without frequent refills. Made from shatterproof, frost-resistant materials and suitable for most water-based garden chemicals, this durable sprayer is built for long-lasting performance in tough outdoor conditions.
Pump-as-You-Go Action – Making light work of those big spraying jobs, the pump as you go action efficiently creates pressure with minimal effort for quick and easy spraying. The trigger locks allow for continuous use, providing a consistent coverage. Equipped with pressure release safety valves, this sprayer ensures safe and reliable operation.
Easy Handling – The Ergonomically designed curved tank and twin shoulder straps with quick-release buckles provide ease of use and ensure comfort during long sessions. Fitted with a large filling mouth and removable filter, the sprayer is both easy to refill and easy to clean, offering convenience, efficiency and long-term reliability.
Hose & Lance with Nozzle Sprays & Service Kit – With a 140cm hose and 90cm lance, this sprayer offers optimal flexibility to reach tricky spots with ease. Supplied with three versatile adjustable spray nozzles, 30-degree twin spray, fan spray and four-hole spray, allowing for customized spray patterns for different applications and comes complete with a handy service kit to keep the sprayer in top working condition for prolonged use.
Faithfull 5 year Manufacturers Guarantee – Ideal for home gardening or managing a larger plot, the Faithfull Pressure Sprayer’s large capacity, adjustable settings and comfortable design make it an indispensable tool, offering durability, reliability and efficiency in garden care needs.

ASC - 20L Pressure Sprayer Complete Set - Knapsack, Shoulder Strap, Pump & Trigger Action - for Weed Killer, Water, Fertilisers, Pesticides, Herbicides, Multi-Purpose - 20 Litre Tank, Green

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Why We Love It

Powerful and versatile spraying capabilities.
Comfortable wear for extended use.
Simple operation with complete kit.

Main Highlights

POWERFUL 20L KILLER - Large capacity knapsack sprayer, perfect for easily tackling any outdoor job. Pump up the pressure and unleash the spray for maximum coverage.
VERSATILE SPRAYING - Our Pressure sprayer can be used with liquid plant food, weedkillers, or water. The reversible operation allows you to spray with one hand and pump with the other, so you can tackle any job with ease.
COMFORTABLE TO WEAR - Padded straps and a contoured back ensure you can wear this backpack sprayer for extended periods without feeling fatigued.
EASY OPERATION - ASC pressure sprayer is simple to use. Fill it up with your desired liquid, pump the lever a few times to build pressure, and squeeze the trigger to spray. The spray lock nozzle also makes continuous use a breeze.
COMPLETE KIT - Our pressure sprayer comes with everything you need to get started, including spare spray heads, seals, and pins. With this kit, you'll be able to tackle any outdoor job with ease. Whether you're tackling large-scale gardening projects or demanding industrial applications.

EPISENT Pressure Pump Sprayer – 20L Garden Pressure Sprayer with Adjustable Mist & Jet Nozzle, Carry Strap, 60cm Long Lance, Leakproof Tank – Pump Action Sprayer for Weed Killer, Roof & Patio Cleaning

Why We Love It

Versatile, for various spraying needs.
Lightweight, provides stress-free usage.
Adjustable, promoting convenience and adaptability.

Main Highlights

ADJUSTABLE NOZZLE: SPRAY TO MIST – Easily control spray output from fine mist to powerful jet. Ideal for spraying plants, roof moss remover, or outdoor disinfectants with precise flow.
60CM EXTENDED LANCE INCLUDED – Reach roof corners, tall hedges, or deep plant beds with the long metal lance. Ensures comfortable spraying without bending or straining.
ACCEPTS MULTIPLE NOZZLES & ATTACHMENTS – Comes with extra fittings and universal nozzle compatibility. Switch patterns for garden, patio, car, or industrial spray jobs.
SUITABLE FOR BLEACH, CLEANERS & FERTILISERS – Use safely with water-soluble weed killer, bleach-based solutions, or liquid fertilisers without risk of internal corrosion.
EASY PRESSURE CONTROL & RELEASE VALVE – Built-in pressure valve lets you safely regulate or release excess pressure. Spray comfortably without over-pumping.
CHEMICAL-RESISTANT BUILD – Made with premium plastic that resists acid-free bleach, garden chemicals, and cleaning agents. Durable enough for regular, heavy-duty use.
NO LEAKS – EVEN UPSIDE DOWN – Fully sealed system prevents dripping, even when tilted or carried at angles. Suitable for under-furniture spraying or inverted angles.
VISIBLE WATER LEVELS FOR EASY MIXING – Graduated tank with embossed measurement markings for precise dilution of solutions. Avoids overfills or messy spills.
COMFORTABLE STRAP FOR LONG USE – Adjustable shoulder strap with padding ensures comfort during long tasks. Great for elderly users, gardeners, or field workers.
TRIGGER LOCK FOR HANDS-FREE USE – Lockable trigger reduces hand fatigue when spraying large surfaces. Ideal for fence, decking, lawn, or full garden treatments.

S ONE DISCOUNTS LIMITED

Knapsack Garden Pressure Sprayer Backpack Spray Bottle Weed Killer Chemical 20L

Main Highlights

20 Litre Garden Backpack Pressure Sprayer Knapsack Weed Killer
SPECIFICATION This knapsack sprayer is manufactured with a fully adjustable nozzle & trigger lock plus handy shoulder strap for easy portability.
It is ideal for spraying water, fertilisers, herbicides & pesticides & can also be used for spray cleaning detergents or solvent-free preservative treatments.
Approx Hose Length: 1.25m

My Garden Outdoor Living

My Garden Knapsack Sprayer 20L with Adjustable Nozzles – Garden Manual Pressure Sprayer with Long Lance 10kPa Pressure Sprayer for Garden, Safety Lock, Patio Sprayer

Why We Love It

Effortless and powerful weed control.
Versatile nozzle for precise coverage.
Convenient, ergonomic design.

Main Highlights

Versatile 20L Manual Garden Sprayer: Tackle any gardening or cleaning task with ease using this 20-litre pressure sprayer. Whether you're applying weed remover, pesticides, or fertilizers, this Manual Garden sprayer is built to deliver powerful, consistent coverage ideal for patios, gardens, greenhouses, and agricultural settings.
Interchangeable Nozzles & Long Reach: Equipped with double, cone fog, and four-hole nozzles, this garden sprayer provides adjustable spray patterns for every need. The 60cm extra-long lance ensures precise reach and reduces bending, letting you cover large or hard-to-reach areas with ease.
Comfortable Wear with Adjustable Straps: Featuring twin adjustable shoulder straps, this weed killer sprayer is designed for prolonged use with minimal fatigue. Lightweight at 3.7kg and ergonomically built, it offers balanced weight distribution ideal for extended spraying sessions around your home or farm.
Leak-Proof Design & Safety Lock: Built with high-grade materials and a secure safety lock, this pressure sprayer ensures reliable, leak-free performance. The pressure sprayer includes a sealed tank system to keep liquids contained no spills, no mess, just efficient spraying.
Adjustable Pressure for Control: Maintain optimal spraying pressure with the adjustable Straps. With an average output of 10 kPa, this pressure sprayer ensures steady flow whether misting delicate plants or treating larger areas with herbicide—making it your go-to garden and patio sprayer.

8.8

Excellent

We scanned 1809 products

We reviewed these offers relevant to the Garden Sprayers 20 Litre Pressure within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like SYLSTAR, BURAKH, Oregon, Draper, Faithfull, ASC, EPISENT, S ONE DISCOUNTS LIMITED, My Garden Outdoor Living, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Garden Sprayers 20 Litre Pressure in the market, we considered we took a deep dive into 9046 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is SYLSTAR Battery Powered Knapsack Sprayer 12L,80PSI Pressure Spray Compatible With Makita 18V Battery,Backpack Sprayer With 5 Nozzles,39.3'' Telescopic Wand,For Garden&Lawn(Includ 2.0Ah/21V Battery). We love many things about this product by SYLSTAR. What sets it apart from the competition is Compatible with Makita battery. , Powerful 80 PSI spraying force. , Comfortable, ergonomic design. .
The best value product for most shoppers and where user satisfaction is continuously the highest is Electric Knapsack Pressure Sprayer 20L Garden Weed Killer | 8000 mah Rechargeable Battery Cordless | Weed Killer Pressure Sprayer Pump Action High Pressure Long Reach Sprayer… by BURAKH based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Garden Sprayers 20 Litre Pressure and the best cost-to-value ratio is SYLSTAR Battery Powered Knapsack Sprayer 12L,80PSI Pressure Spray Compatible With Makita 18V Battery,Backpack Sprayer With 5 Nozzles,39.3'' Telescopic Wand,For Garden&Lawn(Includ 2.0Ah/21V Battery)at SYLSTAR with a 8% discount.
Our list of the best Garden Sprayers 20 Litre Pressure is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Garden Sprayers 20 Litre Pressure in The UK

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We scanned 1809 products

We concluded that: