Waterway Executive 4.0 HP [12/4.4A] [2S] Pump (3721621-1D) gfci It is a strong replacement

It is a strong replacement option when restoring dependable pressure-based control is part of returning the system to safe and consistent operation

Designed for 3

Replacing it with the correct SPDT momentary model helps preserve original behavior and installation style

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

For spas using the E3 Mini Value configuration

Waterway Executive 4.0 HP [12/4.4A] [2S] Pump (3721621-1D) gfci It is a strong replacementThe 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