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1. D.B. Smith

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Field King 190328 Backpack Sprayer, 4 Gallon,

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D.B. Smith #ad - 4 nozzles included: brass adjustable, 2 flat fans, and foaming nozzle. Internal no leak pump design is safer to use chemicals will not drip down your back. Premium, lockable shut off with brass components and an in-line filter. Internal piston pump delivers up to 150 PSI. Easy access pump allows changing of seals in just minutes with no tools. Durable, 21 inch poly wand with the highest quality Viton seals can be used with Wet table powders and liquids for all applications does the work of both a piston and diaphragm backpack. Also accepts Tee Jet nozzles.
BrandD.B. Smith #ad
ManufacturerFountainhead Sprayers #ad
Height9.5 Inches
Length15 Inches
Weight12.8 Pounds
Width22.5 Inches
Part Number190328
Model190328

2. Chapin International

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4-Gallon, Chapin 61800 4Gal Backpack Sprayer, Translucent White

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Chapin International #ad - Padded shoulder straps to accommodate a full backpack for hours. 3-stage filtration system with in-tank removable/cleanable filter. Compatible with common fertilizers, weed killers and pesticides. 4-gallon translucent tank with 4-inch wide mouth opening for easy filling and cleaning. Cushion grip poly shut-off with three nozzles for a variety of applications.
BrandChapin International #ad
ManufacturerChapin International #ad
Height22.2 Inches
Length14.8 Inches
Weight9.2 Pounds
Width8.4 Inches
Part Number61800
Model61800
WarrantyComes with Manufacturer Warranty.

3. SOLO

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Solo 425 4-Gallon Professional Piston Backpack Sprayer, Wide Pressure Range up to 90 psi

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SOLO #ad - Solo’s 425 backpack sprayer includes a 28-inch unbreakable wand that securely connects to a 48-inch nylon-reinforced high-pressure hose for an extended reach. Solo's rugged metal frame with an extra-large tank opening makes it easy to fill and clean quickly.

Thoughtfully designed with Viton seals placed in key locations to ensure long service and durability. Designed with a commercial shut-off valve that securely locks in either the on or off position to minimize user fatigue, the pump handle is interchangeable for left or right-hand operation. Easily spray liquid disinfectants, herbicides, pesticides with Solo's high-performance piston pump for tree, fertilizers, shrub and plant protection. Four easily changeable commercial-grade spraying nozzles-Plastic Adjustable, Hollow Cone, Fan Spray, Jet Stream nozzle and is TeeJet compatible.
BrandSOLO #ad
ManufacturerSolo #ad
Height15 Inches
Length9 Inches
Weight10.3 Pounds
Width20 Inches
Part Number10207
Model10207
Warranty1-year limited warranty.

4. Field King

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Field King Max 190348 Backpack Sprayer for Professionals Applying Herbicides

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Field King #ad - Easy access pump, change seals in just minutes with no tools. Durable, 21 inch stainless steel wand with the highest quality Viton seals for chemical resistance. Internal no leak pump design is safer to use - chemicals will not drip down your back. Premium, lockable shut off with brass components and an in-line filter. 4 nozzles included: brass adjustable, 2 flat fans, and foaming nozzle. Also accepts TeeJet nozzles.
BrandField King #ad
ManufacturerFountainhead Sprayers #ad
Height9.5 Inches
Length15 Inches
Weight12.8 Pounds
Width22.5 Inches
Part Number190348
Model190348

5. Petra

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New HD Wand Included, Wide Mouth Lid, Multiple Nozzles & Battery Included, Petra 4 Gallon Battery Powered Backpack Sprayer – Extended Spray Time Long-Life Battery

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Petra #ad - 70 psi pump with adjustable pressure knob. Petra hd4000 1 year warranty. Battery and charger included! Wide mouth lid - large wide mouth lid allows for easy filling with screen filter to keep dirt & debris out of the tank. Includes multiple different nozzle attachments! The secondary lid allows for easy storage of nozzles.

Quality control testing and final assembly on each sprayer completed at Petra testing centers in the USA! New petra hd acid bleach wand included: Meet all your spraying needs with the all new Petra HD plastic acid bleach wand. The 8ah lead-acid battery provides 4X the battery life of most other 2. 0 lithium battery sprayers. Includes plastic squeeze handle with locking mechanism. Includes a fully-automatic AC charger that completely charges the battery in 8 hours.

If needed, the battery can be changed quickly. Petra wants to make sure that you are 100% satisfied with your petra hD4000 Sprayer and will help any way they can. Other sprayers provide EXTREMELY limited support on Amazon but not Petra. Translucent tank with gallon markings: the translucent tank with gallon markers allows you to easily see how much solution you’re mixing in and how much is left in the tank. Variable psi pressure adjuster allows you to control your perfect spray.
BrandPetra #ad
ManufacturerPetra #ad
Part NumberHD4000-Sprayer

6. Husqvarna

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Husqvarna 4 Gallon Backpack Sprayers, White

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Husqvarna #ad - Can be used with wet table powders and liquids for all applications. Deluxe comfort harness. Pump handle can be stored vertically or horizontally. Does the work of both a piston and diaphragm backpack. Easy access pump, change seals in just minutes with no tools. Internal no leak pump design is safer to use - chemicals will not drip down your back. 150 max psi: 25 psi pressure regulator delivers constant pressure to apply lawn chemicals.
BrandHusqvarna #ad
ManufacturerHusqvarna #ad
Height23.03 Inches
Length16.38 Inches
Weight12 Pounds
Width10.83 Inches
Part Number596765901
ModelBackpack Sprayer
Warranty5-Year Limited Warranty

7. Chapin International

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4 gal, Chapin 61500 Backpack Sprayer for Fertilizer

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Chapin International #ad - 2-stage filtration system, one filter at the top and another filter at shut-off. Compatible with common fertilizers, weed killers and pesticides. Seal material - Nitrile. Poly shut-off with 2 nozzles: adjustable poly cone and fan tip. Padded shoulder straps to accommodate a full backpack for hours. 4-gallon 4-inch wide mouth opening, translucent tank for easy filling and cleaning.
BrandChapin International #ad
ManufacturerChapin International #ad
Height18.25 Inches
Length17.25 Inches
Weight10.6 Pounds
Width9.75 Inches
Part Number61500
Model61500

8. Rainmaker

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Rainmaker Backpack Sprayer, 4 Gallon

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Rainmaker #ad - This sprayer has an integrated filter included and a 4 ft. Hose. Trigger with a lock-on option can be engaged for a continuous spraying. All purpose sprayer ideal for herbicides, pesticides, liquid fertilizers and many home applications! Manual pump backpack sprayer is ideal for large jobs. Includes four interchangeable sprayer nozzles for different applications.
BrandRainmaker #ad
ManufacturerRainmaker #ad
Height23 Inches
Length18 Inches
Width7 Inches
Part Number708902
Model708902
WarrantyManufacturer's 1 year warranty

9. Roundup

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Roundup 190314 Backpack Sprayer for Fertilizers, Weed Killers & Insecticides, 4 Gallon, Herbicides

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Roundup #ad - Heavy-duty poly wand with shut-off featuring a comfort grip, lock for continuous spraying and an in-line filter. Viton seals and gaskets throughout the pump and shut-off for long lasting chemical resistance. 4-gallon sprayer meets all your spraying needs controlling weeds and pests, growing flowers and vegetables and cleaning decks and siding. Includes 3 nozzles for versatility: poly adjustable, high volume fan, and low volume fan. Adjustable padded straps with waist belt and built-in lumbar support.
BrandRoundup #ad
ManufacturerRoundup #ad
Height22 Inches
Length9 Inches
Weight10 Pounds
Width15 Inches
Part Number190314
Model190314

10. Chapin International

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Chapin International 63985 Black & Decker Backpack Sprayer, 4 gal, Translucent White

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Chapin International #ad - 35-40 psi with a 20-foot maximum horizontal spray stream. This shut off does not have a lock-on/lock-off feature. Note: charge battery fully before first use. Cushion grip shut-off with three nozzles for a variety of applications. Note: kindly refer user manual and instructional video before use. 75 hours of continuous spraying. Spray stream max vertical: up to 27-feet. Features a black & decker 20-volt Lithium ion Battery for up to 1. Straps for prolonged use. 4-gallon tank with 6-inch wide mouth funnel for easy filling and cleaning.
BrandChapin International #ad
ManufacturerChapin International #ad
Height22 Inches
Length14.8 Inches
Weight9.5 Pounds
Width8.8 Inches
Part Number63985
Model63985