Waterway Executive 4.0 HP [12/4.4A] [2S] Pump (3721621-1D) gfci A volute is one of

A volute is one of the major wet-end housing parts that helps shape and direct water movement through the pump

More importantly

The Hayward SPX1085D2PAK2 faceplate gasket set is designed for compatible SP1085 skimmer applications and includes two replacement gaskets

The 004308F is a practical service part when a compatible Raypak heater needs a pilot orifice to restore dependable pilot-fuel delivery

For spas using the E3 Mini Value configuration

Waterway Executive 4.0 HP [12/4.4A] [2S] Pump (3721621-1D) gfci A volute is one ofThe Waterway 3721621 1D Executive pump is designed for compatible applications and features a 4. 0 HP motor in a 2 speed configuration rated at 12. 0 amps and 4. 4 amps. A pump like this is useful because it restores the complete operating unit while preserving dual speed performance for systems that benefit from both higher output and lower speed operation. Two speed Executive pumps can be especially practical where equipment flexibility is important