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Hoffman Speciality - 3/4″ Pipe, 150 Max psi, Brass, Coated Brass, Pressure Type Vacuum Breaker Valve - 31790173 - MSC Industrial Supply
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1/8" Straight Hoffman Style Steam Air Vent; Heat Regulator Float Type Valve; Straight Mount; NPT; Chrome Plated Steel | Fittings N' Valves
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Bell & Gossett Hoffman Specialty® 401488 79 Series Water Main Vent Valve, NPT, 75 psi, Brass Body | Cooney Brothers
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