Top 9 4 Gal. Diaphragm Backpack Sprayer – Lawn & Garden Sprayers

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1. SOLO

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SOLO Model 475-B Professional Backpack Sprayer, 4 Gallon Diaphragm Pump

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SOLO #ad - Viton seals, gaskets, and o-rings throughout High-density polyethylene tank with deluxe shoulder saver harness Excellent chemical resistance and durability 4-Gallon capacity 21˝ stainless steel wand.
BrandSOLO #ad
ManufacturerSolo #ad
Part Number475-B-Professional

2. Chapin International

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Herbicides and Pesticides, Chapin International 64800 4-Gallon ProSeries Liquid and Wettable Powder Diaphragm Pump Backpack Sprayer for Fertilizer, 4-Gallon 1 Sprayer/Package

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Chapin International #ad - 3-stage filtration system with in-tank removable/cleanable filter. Padded shoulder straps to accommodate a full backpack for hours. Cushion grip poly shut-off with three nozzles for a variety of applications. Diaphragm pump provides compatibility with common fertilizers, weed killers and pesticides in both liquid and wettable powder form. 4-gallon translucent tank with 4-inch wide mouth opening for easy filling and cleaning.
BrandChapin International #ad
ManufacturerChapin International #ad
Height9.2 Inches
Length22.3 Inches
Weight10 Pounds
Width15.2 Inches
Part Number64800
Model64800
Warranty1 Year

3. Chapin International

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CHAPIN 61500 Backpack Sprayer for Fertilizer, 4 gal

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

4. Chapin International

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4-Gallon, Translucent White, CHAPIN 61800 4Gal Backpack Sprayer with Adjustable and Fan Nozzle

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Chapin International #ad - Cushion grip poly shut-off with three nozzles for a variety of applications. 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. Padded shoulder straps to accommodate a full backpack for hours.
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.

5. Husqvarna

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White, Husqvarna 4 Gallon Backpack Sprayers

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Husqvarna #ad - Deluxe comfort harness. 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. Does the work of both a piston and diaphragm backpack. 150 max psi: 25 psi pressure regulator delivers constant pressure to apply lawn chemicals. Pump handle can be stored vertically or horizontally. Can be used with wet table powders and liquids for all applications.
BrandHusqvarna #ad
ManufacturerHusqvarna #ad
Height23.03 Inches
Length16.38 Inches
Weight12 Pounds
Width10.83 Inches
Part Number596765901
ModelBackpack Sprayer
Warranty5-Year Limited Warranty

6. Field King

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Field King Max 190348 Backpack Sprayer for Professionals Applying Herbicides , White , 4 gallon

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Field King #ad - 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. 4 nozzles included: brass adjustable, 2 flat fans, and foaming nozzle. Also accepts TeeJet nozzles. Premium, lockable shut off with brass components and an in-line filter. Durable, 21 inch stainless steel wand with the highest quality Viton seals for chemical resistance.
BrandField King #ad
ManufacturerFountainhead Sprayers #ad
Height9.5 Inches
Length15 Inches
Weight12.8 Pounds
Width22.5 Inches
Part Number190348
Model190348

7. Chapin International

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4-Gallon 1 Sprayer/Package, Herbicides and Pesticides, Chapin 63924 4-Gallon 24-volt Extended Spray Time Battery Backpack Sprayer For Fertilizer

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Chapin International #ad - Features a 24-volt lithium ion battery for up to 2 HOURS of continuous spraying. 3-stage filtration system to prevent clogging and deluxe padded shoulder straps for comfortable use. 35-40 psi with a 25-30-foot maximum horizontal spray stream. Spray up to 58 gallons on a single charge. 4-gallon tank with 6-inch wide mouth funnel for easy filling and cleaning. Note:kindly refer to the user manual provided as a PDF manual in the product description section. Cushion grip shut-off with three nozzles for a variety of applications does not have lock-on/lock-off feature.
BrandChapin International #ad
ManufacturerCHAPIN #ad
Height21.9 Inches
Length14.75 Inches
Weight11 Pounds
Width9 Inches
Part Number63924
Model63924

8. Smith Performance Sprayers

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Smith Performance Sprayers NL400 4-Gallon No Leak Backpack Sprayer for Landscapers Applying Weed Killers and Fertilizers

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Smith Performance Sprayers #ad - Patented pump design has minimal high-wear parts 60% fewer replacement parts and can be repaired in minutes without tools. Spray hard-to-reach areas and create more precise spray patterns.

Less down time! This is an o. E. M. Built-in agitator can handle liquids, in solution, and water-soluble solutions. Part. Durable, 21 inch stainless steel wand with exclusive poly lining and the highest quality Viton seals for maximum chemical resistance. Achieves 65% higher pressure than leading diaphragm pump backpacks. Agitator keeps them mixed, powders, and ready to spray. Exclusive, internal no leak Pump never leaves harsh chemicals dripping down your back and pressurizes to 150 psi.
BrandSmith Performance Sprayers #ad
ManufacturerSMITH PERFORMANCE SPRAYERS #ad
Height22.5 Inches
Length9.5 Inches
Weight12.8 Pounds
Width15 Inches
Part Number190461
Model190461
WarrantyLifetime limited warranty on tank and frame, 1 year on parts and accessories

9. Chapin International

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Chapin International 61575 Bleach & Disinfectant Backpack Sprayer, Translucent White, 4 gal

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Chapin International #ad - Comfort-grip poly shut-off and reinforced hose, adjustable cone and fan nozzles included. Compatible with bleach solutions and fungicides. 4-gallon 4-inch wide mouth opening with removable strainer, translucent tank for easy filling and cleaning. Up to 100 psi of pressure. Padded shoulder straps to accommodate a full backpack for hours.
BrandChapin International #ad
ManufacturerChapin International #ad
Height18.25 Inches
Length17.25 Inches
Weight10.6 Pounds
Width9.75 Inches
Part Number61575
Model61575

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