Gopani product system [gps] provides jumbo polypropylene opaque filter housings made of polypropylene. The molded polypropylene opaque cartridge filter housings are available with features like lower pressure drop at higher flow rate, larger connections, air venting provision, robust knife-edge, molded structure, zero bypass, excellent chemical resistance and leak proof sealing. Jumbo polypropylene opaque filter housings are sealed with top seated buna-n/silicon/viton* `o` ring by positive tangential contact reducing accidental misplacement. The caps of the jumbo polypropylene opaque filter housings are constructed from polypropylene and come with 1" and 1.5" bsp [f] connections to match various flow rating and piping configurations. The caps for these jumbo polypropylene opaque filter housings are available with pressure release mechanism to release the housing pressure when changing cartridge. This pressure relief mechanism of the cap is constructed of stainless steel spring and screw and black polypropylene button. Some of the salient features and advantages of these jumbo polypropylene opaque filter housings are