Pentair Rainbow Chlorinator 1" FPT Union (R270531) aquacal The diffuser guides water from

The diffuser guides water from the impeller into the volute

or hardware fit must be matched

Seal PS-1904 shaft seal is designed for compatible 3/4 inch shaft pump applications that benefit from a premium silicon carbide sealing interface

Fits compatible SP0720 applications

Center-port design supports intended fit and function

Pentair Rainbow Chlorinator 1" FPT Union (R270531) aquacal The diffuser guides water fromThis 1" FPT union is built for Rainbow chlorinator installations where a secure, serviceable plumbing connection is needed. A proper union makes future feeder maintenance easier by allowing components to be separated without cutting plumbing, which is especially valuable on compact equipment pads or older feeder assemblies. It is a smart replacement when the original union has cracked, cross threaded, or no longer seals properly. Confirm thread size