Pentair Sta-Rite ABG 1.5 HP Impeller (17301-0111) modular and this Maytronics Dolphin Wave

and this Maytronics Dolphin Wave version uses the 9995721 reference

The Waterway 550-4500 Crystal Water intake diffuser assembly is designed for compatible filter applications

lighter spring configuration

set screws

Pentair Sta-Rite ABG 1.5 HP Impeller (17301-0111) modular and this Maytronics Dolphin WaveRestore water moving performance in a compatible Sta Rite above ground pump with this 1. 5 HP impeller. The impeller is the rotating hydraulic component that drives water through the pump, making correct sizing essential for flow, efficiency, and motor compatibility. This replacement is useful when the original impeller is cracked, worn, clogged, or damaged by debris. During installation, inspect the diffuser, shaft seal, and wear surfaces so the