Plastic Housings – For applications involving non-aggressive fluids, these are a low cost, small sized single cartridge housing to suit 10″ or 20″ cartridges. Consists of a polypropylene body and screw on lid which forms a leak proof seal by compression of an o ring. 1/2″ – 1 1/2″ BSP screwed inline connections are available as standard. An optional pressure release button is available on the inlet port. Available accessories include spanners and mounting brackets.