Product Overview

The Chapin Commercial Duty Jet Clean Dual Displacement Pump 4 gallon Backpack Sprayer (63900) is a backpack sprayer that is designed for herbicide and fertilizer applications. The Jet Clean is well known for agriculture, farm, livestock, turf, landscape, home and garden industries. It features 3 stage of filtration system which includes the strainer basket, filter in piston cylinder and filter in shut-off. It is also built with a 6 inch cap with handle that offers a huge backpack opening for convenience in filling and cleaning. Its mouth opening measures 6 inch wide for easy filling and for an effortless access to internal components of the sprayer. The piston and diaphragm pump configuration eradicates leaking from the pump and the in-tank removable filter efficiently catches anything that gets by the strainer when filling and fastens to the inlet filter at the piston. Other than that, the Jet Clean is built with a self cleaning pump to keep the removable filter from blocking with undesirable debris. Once purchased, a variety of nozzles are included to help you determine volume of spray or its spray pattern.

Product Documents

Chapin Commercial Duty Backpack Sprayer Jet Clean 4 Gal. (63900) Supplemental Document

Features and Specs

For use in	Farm, agriculture, livestock, home and garden, snow and ice removal, turf, landscape industries
Application	Fertilizer and herbicide applications
Dimensions	14.80 x 8.80 x 22.10
Special Features	Equipped with Viton Seals in necessary key areas Viton is a brand of synthetic rubber and fluoropolymer elastomer commonly used in o-rings and other molded or extruded goods
Warranty	1 year
Parts Included	Strainer basket, filter in piston cylinder, filter in shut-off, cap with handle, piston and diaphragm pump, in-tank removable filter and multiple nozzles
Shipping Weight	13.05 lbs
Manufacturer	Chapin (Mfg. Number: 63900)
UPC	023883639006

Customer Reviews

Average Customer Rating

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1 star

Issue with handle

By Jeff on 03/23/2016

The pump handle does not fit very well and is extremely loose even after the bolt is tighten down. Also padding on the back is to thin when your carrying a full load of 4 gallons. Takes lots of pumps to get full pressure.

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10 of 10 people found this review helpful
I agree with other review

By Jeffery on 03/17/2017

the handle stinks. I have normal arms and I cinch the straps up as much as they can go and still I have a hard time with the handle, it's just too far away to be comfortable. The handle remains loose even when bolt is tightened. Half of your pump travel is lost to the looseness. The comfort padding is thin.

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4 of 4 people found this review helpful
Best Backpack Ever Used

By Monique on 07/22/2020

My handle was just right so not sure what other reviews saw, and the features are hard to beat. Pumps easily and I love the wide opening so I don't spill any chemicals. Cushioned trigger is nice and it sprays far

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Questions & Answers

Have a question about this product?

Will the Chapin Commercial Duty Backpack Sprayer Jet Clean 4 Gal. (63900) resist the corrosive effects of d-limone herbicides like Avenger?

Primary use of this unit will be to apply Avenger AG Burndown Herbicide

We have spoken with Chapin regarding this and they have stated that the Chapin Commercial Duty Backpack Sprayer Jet Clean 4 Gal (63900) will not handle Avenger or any other citrus oil containing product. The best recommendation given is to use one of the least expensive sprayers that you can use as a "throw away" sprayer.