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4 HP Spa Pump: 2.5" in/2.0" out, Side Discharge, 56 Frame-240V

SKU: BX4109-S25
PRICE: $274.95

  Rating: 5.0 out of 5 stars5.0 out of 5
2 Reviews
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2-Speed Heavy Duty Spa Pump
(easily configured for 1-speed) How to

Our premium quality Spa Pumps are unsurpassed for reliability and long life. Because of our huge buying power, we charge less for a complete new hot tub pump (motor & wet end) than some others charge for just a replacement motor or rebuilt unit!

3 Year Warranty High Performance Motors We use top quality Waterway wet ends and new high performance motors-- the best money can buy.

Need help? See the replacement spa pump informationPump Selection & Installation Guide

Spa Pump Dimensions A: 16 5/8"
B: 8 1/2"
C: 3 5/8"
About Frame size

Side vs. Center Discharge

Orientation of Wet End

Pump wet ends can be oriented in 90º increments to meet your installation requirements. Loosen the pump's four through bolts from the back of the motor and pull them back enough to disengage. Then rotate the wet end to the desired position, realign and re-tighten the bolts.  

Wet ends can be rotated

How to Determine Spa Pump Plumbing Size
by measuring O.D. of wet end male threads

Plumbing size

Pump plumbing sizes are nominal, and not actual outside diameter (OD) of the threaded intake or discharge. Use a tape measure and check your old pump thread size against this sizing table for most* spa pump brands:

Plumbing Size
Pump Thread O.D. (approx.)

Product notes: 220-240V, 12A high speed (3450 RPM), 4.4A low speed (1725 RPM). 240 GPM on high speed. Order new pump unions (link below) if needed. Waterway part numbers: 3721621-13 and PF-30-2N22M. Replaces motor numbers RB817, B235, TT505 AND 5KCP49UN9314X.

IMPORTANT: *Some brands of hot tub spa pumps (such as Hayward, Jacuzzi, and Sta-Rite) use non-standard fittings with different dimensions.

Help Desk Great price and features aside, buying from The Spa Depot provides access to one thing you can't get anywhere else: our expert technical support. Installation questions or need assistance? We're here to help!

Toll Free (800) 823-3638 Support hours: Weekdays, 8 am - 5 pm, Pacific Time

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Excellent     1/17/2015
Better than expected
First time spa owner. received a used spa and the motor was fried. Ordered this motor/pump combo figuring it would be easier to install great choice! Everything hooked up as expected. The great part of this pump is it is whisper quite! We can not hear it running even on high! Thanks to Spa Depot for great service techs and great products! Shipped and received as promised which is another plus!

Reviewer: Male   Age Group: 45-54
Location: Mantua, Ohio
Has owned this product for: 1 week or less
Uses product: Daily

Recommends this product? Yes

Excellent     12/7/2014
Great Replacement Pump
Spa Depot customer service excellent. FIrst timer to replace main spa pump. everything matched perfectly. Just follow the instructions on the website an don't be stupid with electricity if you don't know what you are doing. Thanks Spa Depot for providing high quality products fast to get my spa up and running.

Reviewer: Male   Age Group: 55 or Older
Location: Virginia
Has owned this product for: 1 week or less
Uses product: Daily

Recommends this product? Yes

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