Magnaflow 48-Frame Spa Pumps
For 2"x2" Or 2½"x2" Or 2½"x2½" Plumbing
Pump O.D. Threads can be 3.0"x3.0" Or 3.0"x3.5" Or 3.5"x3.5"
(For 3½" O.D. Threads use Adapter Part #1960)
All our products are built new to order!
If you need help selecting the proper pump for your hot tub, email us pictures of your existing pump to, or call us at 951-684-6667 ext. 223 and we will be happy to help you.

Our knowledge is powered by 18 patents and over 32 years of experience designing and producing the best spa support products in the hot tub industry.

Step ()  Measure your existing pump outer thread diameter for inlet and outlet as shown in Figures A and B. Select the proper O.D. (Outer Diameter) in Figure A or Figure B by clicking the proper button below.
Magnaflow (discharge up)

[Fig. ]
Magnaflow (discharge up)
Click below if you need 3.5" Intake x 3.0" Discharge

You need Part #1690 from Table 9.
[Fig. ]
Step ()  Select the Pump Discharge Orientation that Matches Your Spa Plumbing from Figures C, D or E. (Look at your pump from the spa plumbing end, not from the electrical motor end):

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

Step ()  We will automatically install the industry standard seal selected on Figure F. For corrosive spa water (with chlorine, bromine, salt, etc.) we recommend the corrosion resistant seal from Figure H. Protect your motor from your spa water!:
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 From Table 1, Table 2, Table 3, or Table 4:
. Find your desired pump model number from Table 1, Table 2, Table 3, or Table 4 below. . Click the button to match your existing pump discharge position. . 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 6 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 Table 2, Table 3, Table 4, or Table 5. All pumps ship with the "-A" (std) pump seal unless you choose the "-P" (better) or "-S" (water chemistry corrosion resistant) seal.

Click on the pump model number below to see dimensions...
Click on the pump model number below to see dimensions...
Click on the pump model number below to see dimensions...

Pump weight does not include packaging material or shipping container.

Magnaflow MM23020 or MM23026
MM23020, MM23026
[Fig. ]
Magnaflow MM23032 or MM23040
MM23032, MM23040
[Fig. ]
Click on the pump model number above to see dimensions...

To select additional Magnaflow Spa Pump parts and components,
scroll to the table below.

Table ()   Magnaflow-48 Spa Pump Unions:
Spa Plumbing
[Fig. ]
Part #1662: 2.0" Union with Nut and O-Ring
Spa Plumbing
[Fig. ]
Part #1652: 2.0" Discharge Union with Nut (NO O-Ring)
Table ()   2.0" Intake, 2.0" Discharge
Spa Plumbing
[Fig. ]
Click here for help with the spa plumbing
Spa Plumbing
[Fig. ]
Part #1652 & Part #1662
Table () Magnaflow Spa Pump Air Bleeder
Spa Plumbing
[Fig. ]
AB500 Pump Air Bleeder (no valve)
(Photo shows AB500 mounted on Magnaflow. Maverick and Magnaflow have the same threads.)
Spa Plumbing
[Fig. ]
Click to see Air Bleeder dimensions.

When shopping for a replacement spa pump, always ask for the original Magnaflow.

Models: MM11520, MM23020, MM23020-1, MM23026, MM23026-1, MM23032, MM23032-1, MM23040, MM23040-1, MM23050, MM23050-1, MM23050-50HZ, MM23050-1-50HZ
Dynatech spa pump, Dynatech hot tub pump, Dynatech spa motor,Dynatech hot tub motor, Dyna-Tech spa pump, Dyna-Tech hot tub pump, Dyna-Tech spa motor, Dyna-Tech hot tub motors

SNTech Spa Pumps, SNTech Spa Motors, SNTech Hot Tub Pumps, SNTech Hot Tub Motors, Regal Beloit Spa Pumps, Regal Beloit Hot Tub Pumps, Regal Beloit Spa Motors, Regal Beloit Hot Tub Motors, Century Hot Tub Pumps, Century Spa Pumps, Century Spa Motors, Century Hot Tub Motors, Dynatech spa pump, Dynatech hot tub pump, Dynatech spa motor,Dynatech hot tub motor, Dyna-Tech spa pump, Dyna-Tech hot tub pump, Dyna-Tech spa motor, Dyna-Tech hot tub motors

  1. The Magnaflow is designed with a unique 8-vane impeller to dampen hydraulic noise.
  2. The Magnaflow is designed to optimize spa pump performance while using the least electrical energy.
  3. The Magnaflow pump passed all Public Safety tests per UL Standard 1081.
  4. The Magnaflow pump is powered by A.O.Smith, Magnetek, Emerson, Marathon Electric, Franklin Electric, SNTech, Regal Beloit or Century motors and not by inferior quality motors. Even though motor manufacturers may have different physical motor configurations (for example, capacitors and terminals in different locations), all motors are made per our pump performance specifications. Acura Spa pumps are produced and shipped per our model numbers with any of these motor brands.
  5. The Magnaflow series has powered hundreds of thousands of spas of different brands throughout the world since its introduction in 1994.


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.


Exploded Views & Parts List
Magnaflow Volute and Faceplate
Both Intake and Discharge have
the same threads and
outer thread dimensions.
Magnaflow 48-Frame Volute Rearview
Magnaflow 48-Frame Volute
Part #1112 (rearview)
Magnaflow Exploded View


CE Logo


Magnaflow Performance Data
Performance Data


The Magnaflow was first introduced to the portable spa market in 1994 as the first full-rated 3.0hp, 48-frame motor. The Magnaflow's unique eight-vein impeller allows the Magnaflow to achieve unsurpassed performance with very little noise. 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 $9.95 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, Marathon Electric, etc.)
will be whatever is in stock in our factory at the time.