2-1/2" to 4" Second Check Valve Repair Kit for 957 and 957RPDA

This second check repair kit provides all the parts necessary to repair or replace the second check on a 2 1/2 to 4 inch reduced pressure valve assembly backflow preventer, model 957 and reduced pressure detector assembly backflow preventer, model 957DCDA. This kit consists of second check module, check module O-ring and EPDM disc elastomer.

Features

• Factory replacement kit
• No special tools required for servicing
• All parts are made of high quality materials
• Parts are specific to valve size