The filter housing is made of FDA approved Polypropylene(PP) and Styrene Acrylonitrile(AS). Strong structure, high pressure resistance and no leakage. The specification: Dia. Of inlet/outlet:1/4”,3/8”,1/2”,3/4”,1” Operating Temp.:4-52 centigrade Max.operating pressure:125psi Max.Burst pressure:500psi Cycle test pressure:0-150psi