Waterway Spa Pump 3721621-1W EX2 Aqua-flo XP2e Replacement pump 3M21621-1W, 05334012-2040, 05825489-2, PF-30-2N22M6, 3168033, 05334019-5, 05834036-5, E62386, 14328015X, WO156589, PRC505

3721621-1W Waterway Spa Pump 2-speed, 230V, 12.0/4.4A EX2 56 frame 6.5" diameter 2" SD/CS. Threads measure 3.1" outside diameter. EX2 is the ideal Aqua-Flo XP2e Flo-Master Extreme replacement pump; High performance Water Way Hot Tub Pump, very strong 12 amp motor, double shielded ball bearings. 372-1621-H, Viton Seals.

Made in California by Waterway.

As of Oct '24, this pump is supplied with the 372-1621-H motor model rated 12a 230v.

This Waterway pump replaces older Aqua-flo Flomaster XP, XP2e, and XP2 series, aqua flo flowmaster. Overall length=17" Conservatively rated 3.0 horsepower, and often uprated as 4.0 HP 37216211W Also sometimes available with Emerson Electric motor, model 3M21621-1W. 3721621-0W, Replaces PUM 22000951, 05334012-2040, 05834036-5, 3721623-1W87, 05825489-2, 3721621-0WR187, 3721623-1W8C, MX-40226-20, 3168033, 3721621-1W5A, PF-30-2N22C6, old Watkins 0974101, PUM22901106 and others

This is a good replacement for old Power Right pumps, model PRC505, PRC504, etc

Sometimes labelled PF-30-2N22C 6, PF-40-2N22C6, PF-30-2N22M6, but you should go by the part number, not the model number, to assure a correct match.