Roundup 182349 Universal Lawn and Garden Sprayer Repair Kit with O-Rings, Seals and Gaskets For use with most handheld, compressed air sprayers including Roundup branded sprayers Includes Buna U-Cup seal for pump piston; O-Rings for extension, pump barrel, poppet, dip tube, pump piston, piston as well as two pump gaskets Match the part to be replaced to the images on the package Consult sprayer manufacturer's manual to determine if this repair kit will work for your sprayer