Waterway Viper 5.0 HP [16.4A/4.8A] [2S] Pump (3722021-1V) suctions An assembly like this is

An assembly like this is useful because it restores the upper closure portion of the valve

Executive pumps often need to be matched carefully by frame and performance configuration to ensure a clean replacement

That makes the repair simple while still improving operational confidence

these design details help the heater integrate correctly with the surrounding circulation and control components rather than functioning as an isolated replacement part

Waterway Viper 5.0 HP [16.4A/4.8A] [2S] Pump (3722021-1V) suctions An assembly like this isThe Waterway 3722021 1V Viper pump is designed for compatible applications and features a 5. 0 HP motor in a 2 speed configuration rated at 16. 4 amps and 4. 8 amps. A pump like this is useful because it restores the full operating assembly while preserving the Viper pump family and the flexibility of dual speed performance. In higher output spa systems, two speed pumps can provide a useful balance between stronger performance and a lower secondary