1. Spa Controls
2. Spa Pumps
3. Spa Packs
4. Top Sides & Wifi
5. Circulating Pump
6. Pool Pumps
7. Spa Blowers
8. UV Sanitizer
9. Ozonator
10. Chlorine/Ozone
11. Spa Heaters
12. Balboa Heaters
13. Airbleeder
14. Pump Motors
15. Wet Ends & Volutes
16. Blower Motors
17. Boards & Sensors
18. Electrical Components
19. Plumbing Components
20. Air Buttons
21. Management
22. Baptismal Products
23. Spa Lights
24. Universal Spa Motors
25. Spa Massagers
26. Portable Hot Tubs
27. Filters & Testers
28. General Part List
29. Product Information
30. Manuals & Guides
31. Wiring Diagrams
32. Troubleshooting
33. Terms & Conditions
34. Limited Warranty
35. Returns, Repairs & Warranty Claim Form
36. Proper Water Chemistry
37. Watkins Heaters
38. Watkins Pumps
39. Resale Info
Universal Hot Tub Pumps
Fit All 2" x 2" Spa Plumbing
Exclusively from Acura Spa Systems
Our knowledge is powered by 17 Patents and over 25 years of experience in designing hot tub pumps. Our spa pumps can power any portable spa with 2" x 2" plumbing!
Why pay retail? Buy manufacturer direct & save! Acura Spa Systems is the only spa pump manufacturer to sell direct to the public at affordable prices. Purchase our brand new, energy efficient, reliable, top quality hot tub pumps and new spa motors factory direct, free freight at tremendous savings. Our Universal Spa Pumps replace hot tub pumps made by Waterway, Aquaflo, Sta-Rite, Vico, Balboa, and other pump manufacturers, simply check the dimensions for drop-in replacement.
Internet Only Special Prices!
Click here to bookmark this page to ensure future savings!
Regular Price  $359.99
Magnaflow-56 MS23050-ME
$275.45 Model Number: MS23052 [Fig. ]
Click the model number above to see dimensions
Magnaflow-56 MS23050
Model Numbers: G522050 & MS23052 [Fig. ]
Click the model number above to see dimensions
We automatically substitute the Centurion 56-Frame motors for the ME series. The ME series are no longer produced since SNTech filed for bankruptcy. NOTE: MS23050E [Table (2)] saves 75% in low speed operating cost.
Replaces any 2" x 2" spa pumps made by Waterway, Aquaflo, Sta-Rite, Balboa, Vico and most other hot tub pump brands..
Standard 2" Intake and 2" Discharge spa plumbing measure 3" at the outer thread diameter (Table 8, Table 9 and Table 10).
Note: Some pumps have a 3.5" outer thread diameter Intake. For these, you may need to purchase part #1662 (Table 9) to connect our Universal Spa Pump to your 2" hot tub plumbing.

Table ()
Magnaflow (discharge up)
[Fig. ]
Magnaflow (discharge up)
You need Part #1690 from Table 5.

[Fig. ]

Buttress Thread
Table () Magnaflow Pump Discharge Positions For Various Spa Plumbing
Discharge Right (Suffix -3)
Magnaflow (discharge right)
[Fig. ]
Click below to select

Discharge Up (No Suffix)
Magnaflow (discharge up)
[Fig. ]
Click below to select

Discharge Left (Suffix -4)
Magnaflow (discharge left)
[Fig. ]
Click below to select

Table () Select the Proper Shaft Seal Between the Electric Motor and Wetend
From Figure F, G, or H (We will build your pump accordingly):
Industry Standard Seal (-A)
Pump Seal -A
[Fig. ]
Click below to select

Better Than Industry Standard Seal (-P)
Pump Seal -P
[Fig. ]
Click below to select

The Best Corrosion Resistant Seal (-S)
Water Chemistry Noncorrosive
Pump Seal -S
[Fig. ]
Click below to select


To Order Your Magnaflow Spa Pump From Tables 3, 4, 5 or 6:
. Find your desired pump model number from Tables 3, 4, 5 or 6 below. . Click the button to match your existing pump discharge position (refer to Table 1 above). . Click the button to match your desired pump seal. . Change the quantity (if needed). . If you need unions or cables for your Magnaflow pump, select them in Table 7 below. . Click 'Add to Order' button next to desired accessory and change quantity (if needed). . Go back to your desired pump; Verify the model number, discharge position and quantity are correct. . In the same row as your desired pump, click 'Add to Order' button below the quantity. . Click button to check and submit your order. . Due to variations in individual computers, our page may not display properly on your computer. When placing your order, please verify your desired pump discharge position (see Table 1 above) and desired pump shaft seal are identified on the model number in Tables 3, 4, 5 or 6. All pumps ship with the "-A" (std) pump seal unless you choose the "-P" (better) or "-S" (water chemistry corrosion resistant) seal .

Pump weight does not include packaging material or shipping container.

Table ()   Magnaflow-56 Spa Pump Unions:
Spa Plumbing
Part #1662: 2.0" Union with Nut and O-Ring
Spa Plumbing
Part #1652: 2.0" Discharge Union with Nut (NO O-Ring)

Table ()   2.0" Intake, 2.0" Discharge
Spa Plumbing
Click here for help with the spa plumbing
Spa Plumbing
Part #1652 & Part #1662

Table ()   Exploded Views & Parts List
Magnaflow Volute and Faceplate
Both Intake and Discharge have
the same threads and
outer thread dimensions.
Magnaflow 56-Frame Volute Rearview
Magnaflow 56-Frame Volute
Part #1112S (rearview)
Magnaflow Exploded View


Performance Data


Pump Horsepower:
(cd) Horsepower is the continuous duty output power of the motor or the pump load to the motor.
(spl) Horsepower is used by the hot tub industry (for marketing reasons??).
(bd) Horspower is the motor's maximum load (exceeding this load will burn out the motor).

Model numbers with suffix (-1) indicates the motor is single speed.

Model numbers with no suffix indicate discharge straight up.
Model numbers with suffix (-3) indicates the discharge is to the right.
Model numbers with suffix (-4) indicates the discharge is to the left.

No O.E.M. dealers or distributor discounts with limited offer prices.

All pumps are not provided with unions, unions sold separately. Unions are identified by plumbing dimensions (like 1.5" or 2.0"), but these numbers ARE NOT the physical outer pipe dimensions. These numbers indicate the waterflow volume going into and out of the pump. Please use part numbers as identified for your application.

All electrical work must be performed by a licensed electrician.
All plumbing work must meet I.A.P.M.O., UL 1563, and all local codes and regulations and must be performed by a licensed plumbing contractor.


Replace your old spa or hot tub pump with the latest technology from Acura Spa Systems, Inc. We have over 1.3 million spa and hot tub pumps sold and operating for the last 22 years. All of our spa and hot tub pumps are ETL listed and tested per UL Standard 1081. Our long lasting spa and hot tub pumps are the quietest, most innovative, and most energy efficient in the industry. We are the only spa pump manufacturer to sell direct to the public. Since 1987, our hot tub pumps have been powered by Magnetek Motors, A.O. Smith Motors, Emerson Motors, Marathon Electric and Franklin Electric Motors. Our pumps for many years have supplied many hot tub manufacturers such as: ThermoSpas, LifeSpas, Islander Spas, Catalina Spas, Diamante Spas, Life Spring Spas and many others.


*Free Freight only for Fedex SmartPost. Other forms of shipping incur additional shipping costs.

**Beating competitor's price: We will meet or beat any competitor's written quotation for hardware of the same capability, such as: plumbing size, voltage, motor horsepower, motor 1 or 2-speed, heater length, safety test report, etc.

A $7 Handling charge is applied to all orders.

All products sold per our "Terms and Conditions" found in the "Support" section of our menu.

When your order is produced, the pump motor used (A.O. Smith, Regal Beloit, Marathon Electric, etc.) will be whatever is in stock in our factory at the time.