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one Diaphragm
The male threaded side of this adapter will only connect to a 1 inch female National Pipe Tapered (NPT) thread
fire department-controlled tool required to quickly access every Knox locking FDC cap in your jurisdiction — giving your crew fast
They are usually labeled FDC (Fire Department Connection) and/or AUTO SPKR (Automatic Sprinkler)
316 stainless steel shutoff ball
BFP250-DC Complete Repair Kit Hose Size (ID)_6" Hoses one DiaphragmThe Check Repair Kit is compatible with the 1 1 4 2 Model 350 and 350XL Double Check Backflow Preventer. Repair Kits are sold as accessories for quick and simple repair needs, providing long lasting protection from backsiphonage and backpressure of polluted water into the water supply. Repair Kit Includes Two Ball Valve O Rings, two Sleeve #1 Seat O Rings, one Seat #1, one Spring Retainer #1, two Seat Bolts, two Seal Retainers, two Seal Washers, two
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