JR Products plastic check valve replacement for all new hatches. This check valve is easily replaced by removing a clip located on the back of the hatch or disk. Spring and ball system for longer life. Comes complete with new hose connector and four raised thumb grips. Fitting is 1/2" M.P.T
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3 year limited warranty
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Installation to be performed by a certified technician
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Level up front-end sag with long term maitenance free solution
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Coils have a linear/constant spring rate
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All coils have field tested and come with a 30 year proven track record