009 Backflow Check First Kit 3-4"
| Check Kit Includes: (1/4" - 1") Check Assembly And Cover O-Ring; (1-1/4" - 2") Check Assembly, Cover O-Ring And Sensing Passage O-Ring | Relief Valve Rubber Kits Include: (1/4" - 1" Diaphragm, Two Disc Assemblies, Stem O-Rings, Cover O-Rings, Two Seat O-Rings