FRP pressure vessel to suit one 4.0" x 40" brackish water membrane. 300 PSI working pressure. ID =102mm ; OD = 118mm; LOA = 1121mm. 1/2 inch NPTF end entry ports. Durable non-corrosive fiberglass housing in white color finish.  Polypropylene end plugs and stainless steel retaining plates for easy installation.  Mounting kit with 2 x straps and 2 x saddles. Maximum separation between permeate port and feed/concentrate port allow the use of large fittings. Ethylene propylene "O" rings included.