When installing a pump or filter use unions to make it fast and easy. Also if a repair is needed it's simple to remove the piece of equipment for repair.
Custom Molded Products 2in MPT x 2 in Slip High Temperature CPVC Union
CMP High Temp Self Sealing Unions are a tough and effective upgrade from standard pool unions. These unions are made from high temp Noryl™ material – the same material you pool pump body is manufactured from.
Self Sealing: No Teflon® tape or “pipe dope” needed
The T-Gasket provides a better seal than round or flat gaskets
Great Fast Service 
