Watts RK757/RK757DCDA-C 0899211 2-1/2 inch Through 4 inch Lead Free Backflow Preventer Check Sleeve Cover Repair Kit

Fits 2-1/4 inch 757, 2-1/4 inch 757DCDA, 3 inch 757, 3 inch 757DCDA, 4 inch 757, and 4 inch 757DCDA

This check sleeve cover repair kit helps to prevent the backflow of pollutants that are objectionable but not toxic, from entering into the potable water supply. It features a closure sleeve, sleeve O-ring and gasket. It is designed for non-health hazard applications.