Waterway .75 HP Hi-Flo Side Discharge Spa Pump Impeller "B" (310-3990) valveparts Filter cartridge for compatible C-4440

Filter cartridge for compatible C-4440 and PSD40 spa and pool applications

and EW-75 applications using an 8-1/2 x 18 inch format where the original grid has torn

Designed for compatible internal inlet fitting support

higher-feature spa systems can lose some of the coordinated user access they depend on

2 inch related fit supports intended assembly matching

Waterway .75 HP Hi-Flo Side Discharge Spa Pump Impeller "B" (310-3990) valveparts Filter cartridge for compatible C-4440The Waterway 310 3990 impeller is designed for compatible . 75 HP Hi Flo side discharge spa pump applications and is identified as the B version. An impeller like this is useful because it restores the working water moving element of the pump while maintaining compatibility with the original version specific design. Version specific pump parts matter because even similar horsepower ratings may not use the same impeller. This Waterway part is a strong