DISCONTINUED BY Pool and Hot Tub Depot. Please see compatible replacement sold here
- 3.0 HP Waterway Hi-Flo hot tub pump, 2 Speed heavy duty 48 frame,
- Waterway OEM part # 3421221-10 (Hi-Flo Series) SD-30-2N22
- 2" intake and 2" discharge, (3" actual outside diameter on threads)
- 230volt, 60 Hz North American only.
- 8.5 Amps high speed (3450 RPM)
- 2.8 Amps low speed (1725 RPM).
- Hi-Flo Series wet end for higher head pressure
- Hi-flo series hot tub pump, not a compatible replacement for the Waterway Executive 48 or 56 Series.
- Thermally protected for extended life expectancy
- Double shielded ball bearing with moisture resistant grease
- Wet end can be rotated for LEFT or RIGHT side discharge applications, ships with discharge up.
- Includes, 2 - 2" union O-rings automatically added to cart at checkout.
When replacing a hot tub pump it is recommended to replace the union O-ring as they can develop flat edges from being compressed over the years and when a new pump is installed without replacing the O-ring the union can leak and if over tightened will crack. - Pump cord and unions sold separately.
Important
Determine the pump plumbing size by measuring the outside diameter of the wet end male threads. Plumbing sizes for hot tubs are nominal, and not actual outside diameter (O.D.) of the the threaded intake or discharge. Once you have removed the pump, use a tape measure to check your old pump thread size and compare to the sizes below.
If your pump thread O.D. is (approx.) 2 3/8", Then you'll need a pump with union size 1 1/2".
If your pump thread O.D. is (approx.) 3.0", Then you'll need a Pump with union size 2.0".
If your pump thread O.D. is (approx.) 3 5/8", Then you'll need a Pump with union size 2 1/2".
If your pump thread O.D. is (approx.) 3.0", Then you'll need a Pump with union size 2.0".
If your pump thread O.D. is (approx.) 3 5/8", Then you'll need a Pump with union size 2 1/2".
Manufacturers 1 year limited warranty.
