Brass 2 1/2" Female NYC to 2 1/2" Male NH (Hex) Storz Size_6" Rigid Storz 5 inch NH / NST

5 inch NH / NST male hose coupling or fire hydrant is 3

This is the most common plug size in the US

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The horizontal back flush is the preferred strainer which allows the pvc line to be back flushed

Brass 2 1/2" Female NYC to 2 1/2" Male NH (Hex) Storz Size_6" Rigid Storz 5 inch NH / NSTFemale to male adapters are used to bridge male to female hoses, pipes or valve fittings. Brass is commonly chosen for corrosion resistance, and is popular with chemical or salt water applications. New York Corporate Thread (NYC) is typically only found in parts of New Jersey and New York. This thread is NOT the same thread as the thread known as NYFD or FDNY thread, (New York Fire Department Fire Department of New York), which is also found in parts