3M21621-0T7GDY 3721621-0T7GDY Waterway Spa Pump 2-speed, 230V, 12.0/4.4A Executive 56 frame 6.5" diameter 2" SD/CS, with 3 barbed drain fittings molded into front cover. Threads measure 3.1" outside diameter. High performance Water Way Hot Tub Pump, very strong motor, split capacitor design, double shielded ball bearings. Viton Seals. Overall length=17" Labelled 4.0HP but often relabeled 5hp, 6hp, and even 7hp. 3721621-1c P240E52024, 3M2162101N7GDY, 3M21621-0N7GDY, 3M21621-0N7GDY, 3721625-0D8QMR, 3M21621-0T7GDY, and others. Intake and discharge threads are same size as each other and 3.1" outside diameter.
3 Barbed Ports on front cover barbs are 0.42" diameter for 3/8" ID vinyl tubing.
Overall length 16-7/8", height 9", width 8-1/4". Energy Efficient, labelled 4.0 HP, often marked by spa manufacturers as 6.0 BHP, which is the maximum brake horsepower it can produce. Spa Pumps, Hot Tub Pumps; sometimes ships with US Motors/Emerson motor, and sometimes with A.O. Smith/Century motor. sometimes labelled Dyna-Flo
Can be labelled by one of these 'model numbers', which do not completely define the product like a part number does: PF-40-2N22M, PF-40-2N22MC, PF-30-2N22C, PF-30-2N22M, PF-30-2N22MC, PF-45-2N22E, PF-35-2N22C, PF302N22C, PF-50-2N22C,
PF402N22M, and if you go by the model number, please carefully verify
your motor amps rating and the outside diameter of your intake and
discharge threads. Any doubts, please email us a few photos and we will
help verify for you. email to: firstname.lastname@example.org