0888820 First Check Valve Repair Kit RK 774/774DCDA-CK1 2 1/2-4 6401175 2 to 4 ppm /

2 to 4 ppm    /   5 to 50 ppm Number of Strokes n 20                    /  5 Time for Measurement approx

Koch Filter 102-714-018 Multi-Pleat Green 13  2" High Capacity  MERV 13 Pleated Panel Filter Size 18" x24" x2"

PN: 4594645

Sub Brand: PowerFlex®400

0888820 First Check Valve Repair Kit RK 774/774DCDA-CK1 2 1/2-4 6401175 2 to 4 ppm /MFG # : 0888820 This 2 1 2 4 IN first check detector repair kit for series 774 and 774DCDA prevents the backflow of fire protection system substances from being pumped or siphoned into the potable water supply. This kit consists of a complete number one cam check with a check O ring. It is designed for installation on applications identified by local authorities as non health hazard, such as on fire protection systems. Features All parts are made of