Hayward CX250F compatible with C250, C500, C750, C1000 Star-Clear filters -- CX250F gaskets

All plumbing or mechanical connections need to be sealed using a rigid or flexible waterproof barrier. Static and dynamic connections can be made watertight using fibre or rubber washers, O rings or lip seals, all of which need to chosen to match the type of liquid and pressure they are required to contain.