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The female threaded side of this adapter will only connect to a 4 inch male National Pipe Tapered (NPT) or National Pipe Straight Hose (NPSH) thread
The heavy duty steel construction is covered with a durable red powder coat finish for long life and durability
NPSH and NPT is common in industrial applications
This valve NOT recommended for wet standpipe systems
Basket strainer is the most basic tool for the drafting task
Aluminum 2 1/2" NH Barrel Strainer with Foot Valve (USA) Color_Green The female threaded side of2 1 2 inch NH NST barrel strainer with poppet style check valve. Female threads do not swivel. NH NST threads are used by most fire departments. A foot valve is essentially a check valve that is integrated into this aluminum barrel strainer which is attached to the inlet side (suction side) of a water suction hose to keep it from losing it's prime during the off cycle. This can drastically reduces water relay time. It can also be back filled to aid in