Fits 2-1/2 inch 957, 2-1/2 inch LF957RPDA, 2-1/2 inch 957RPDA, 3 inch 957, 3 inch LF957RPDA, 3 inch 957RPDA, 4 inch 957, 4 inch LF957RPDA, and 4 inch 957RPDA

This check assembly kit includes the parts necessary to repair or replace the first check of a reduced pressure backflow assembly, or reduced pressure detector assembly.. This kit consists of all parts necessary to repair the first check assembly of the applicable valve. All parts are genuine and original to the valve.