0887032 (Watts) | 3/4 - 1 Inch | 007M1 DC First or Second Check Repair Kit SSThis 3 4 to 1 IN First or Second Check Replacement Kit, For Series 007M1, is Used to Prevent The Backflow of Contaminated Water Into The Potable Water Supply. It Consists of a Seat, Seat O Ring, Disc Assembly, And Spring, Check Cage And Cover O Ring. It is Ideal at Referenced Cross Connections Identified as Non Health Hazard Applications. Check With Local Inspection Authorities For Installation Requirements. Watts 0887032