CHAPIN 61500 4-Gallon Backpack Sprayer for Lawn, Garden & Weed Control

The Chapin 61500 Backpack Sprayer provides a wearable 4-gallon solution for applying lawn treatments, managing garden pests, and controlling weeds. Designed for homeowners and gardeners handling large outdoor areas, it moves the weight of liquid chemicals to your back using adjustable padded shoulder straps.

A translucent poly tank allows you to monitor remaining fluid capacity at a glance while working. Filling is managed through a 4-inch opening equipped with a filter cap basket to trap larger particles. Inside the system, a 2-stage standard filtration setup places one filter basket at the fill cap and a second filter inside the shut-off assembly, protecting the spray path from clogging debris.

Application reach and control come from a 48-inch reinforced hose paired with a 20-inch poly extension wand. The shut-off handle features a lock-on mechanism for continuous spraying, while the adjustable poly cone nozzle dials from a coarse stream to a wide shower. Fitted with nitrile seals, the sprayer is compatible with common fertilizers, weed killers, pesticides, and general cleaning mixtures.

As a trade-off, a full 4-gallon load adds noticeable weight that you must carry on your shoulders, and the unit relies on poly components rather than metal hardware for the wand and nozzle. The product data also does not specify pressure ratings or empty unit weight.

Verdict: The Chapin 61500 is a reliable, practical choice for property owners who need a high-capacity chemical sprayer with dual filtration and wearable comfort. It suits anyone looking to tackle lawn, pest, and weed applications efficiently without constant refilling.

• Tank Capacity: 4 Gallons
• Tank Material: Translucent Poly
• Hose Length: 48-inch reinforced hose
• Wand Length: 20-inch poly extension wand
• Tank Opening: 4-inch with filter cap
• Filtration: 2-stage standard system (cap basket and shut-off)
• Seal Material: Nitrile
• Nozzle Type: Adjustable poly cone nozzle

A great fit if you:

• Need to spray larger lawn or garden areas without frequent refills
• Want to visually check fluid levels through a translucent tank
• Require chemical compatibility with standard fertilizers and weed killers
• Prefer wearable shoulder straps over carrying a handheld tank

Consider something else if you:

• Prefer a small handheld sprayer for spot-treating a few indoor plants
• Require metal spray wands for heavy-duty commercial applications

What types of chemicals can I use with this sprayer?
The sprayer features nitrile seals that are compatible with standard lawn and garden chemicals, including fertilizers, weed killers, pesticides, and general cleaning solutions.

How does the filtration system prevent clogs?
It utilizes a 2-stage filtration system with one filter basket in the 4-inch tank cap opening and a second filter located in the shut-off handle to catch debris before it reaches the nozzle.

Can the spray pattern be adjusted?
Yes, the poly cone nozzle can be adjusted from a coarse stream to a shower pattern to match your application.

Does the sprayer wand have a continuous spray option?
Yes, the shut-off assembly includes a lock-on feature for continuous spraying.