Compare Quick view WATERCO WATERCO | IImpeller 1 1/2 HP | 635012 MSRP: Was: Now: $48.44 WATERCO | IImpeller 1 1/2 HP | 635012 THIS IImpeller IS 4 1/2" IN DIAMETER THE OPENING IN FRONT IS 1 7/8" THE SIDE IS 7/16" & THE VEINS ARE 1/4" THICK. THE JANDY MHP & MHPU IImpeller WAS AN EXACT REPLACEMENT # 5020-028
