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Spa Heating System
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Spa Controls
Pool Pumps
Top Side Controls
Spa Packs
Hot Tub Pumps
Circulating Spa Pump
Spa Blowers
Baptismal Products
Megaflow Pumps

UV Generators
Balboa Heaters
Spa Heaters
Digital Boards
Spa Pump Motors
Electrical Components
Plumbing Components
General Part List

For 2", 2½", 3" Plumbing
Knowledge and Experience You Can Trust: Our knowledge is powered by 17 patents and over 28 years of experience designing and producing the best spa support products in the hot tub industry.

Table () Megaflow Pump Discharge Positions For Various Spa Plumbing
Discharge Right (-3)
Megaflow (discharge right)
[Fig. ]  

Click below to select

Discharge Up ( )
Megaflow (discharge up)
[Fig. ]
Click to see Intake/Discharge dimensions.
Click below to select

Discharge Left (-4)
Megaflow (discharge left)
[Fig. ]  

Click below to select

Table () Select the Proper Shaft Seal Between the Electric Motor and Wetend
From Figure D, E, or F (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 Megaflow Spa Pump From Tables 3, 4, 5, 6 or 7:
. Find your desired pump model number from Tables 3, 4, 5, 6 or 7 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 Megaflow pump, select them in Table 13 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, 6 or 7. 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...
Megaflow MF523036
Model Numbers: MF523036
[Fig. ]
Megaflow MF523036X
Model Numbers: MF523036X
[Fig. ]
Click on the pump model number below to see dimensions...
Megaflow MF523026
Model Numbers: MF523026
[Fig. ]
Megaflow MF523030
Model Numbers: MF523030
[Fig. ]
Click on the pump model number below to see dimensions...
Megaflow MF423036-50HZ
Model Numbers: MF423036-50HZ
[Fig. ]
Megaflow MF523036XMC2
Model Numbers: MF523036XMC2
[Fig. ]

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

Table () Megaflow™ Spa Pump Unions:
2.0 inch Union
[Fig. ]
Part #1677: 2.0" Union with Nut and O-Ring
2.5 inch Union
[Fig. ]
Part #1679: 2.5" Union with Nut and O-Ring
3.0 inch Union
[Fig. ]
Part #1681: 3.0" Union with Nut and O-Ring
Table () 2.0" Intake, 2.0" Discharge
2.0 inch Spa Plumbing
[Fig. ]
Click here for help with the spa plumbing
2.0 inch Union
[Fig. ]
Part #1677
Table () 2.5" Intake, 2.5" Discharge
2.5 inch Spa Plumbing
[Fig. ]
Click here for help with the spa plumbing
2.5 inch Union
[Fig. ]
Part #1679
Table () 3.0" Intake, 3.0" Discharge
3.0 inch Spa Plumbing
[Fig. ]
Click here for help with the spa plumbing
3.0 inch Union
[Fig. ]
Part #1681
Table () Megaflow Spa Pump Air Bleeder
Spa Plumbing
[Fig. ]
AB500 Pump Air Bleeder (no valve)
(Photo shows AB500 mounted on Magnaflow. Maverick, Magnaflow and Megaflow have the same threads.)
Spa Plumbing
[Fig. ]
Click to see Air Bleeder dimensions.

Pump weight does not include packaging material or shipping container.

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

Models: MF523026, MF523026-1, MF523030, MF523030-1, MF523036, MF523036-1, MF523040, MF523040-1, MF523036MC2

  1. The Megaflow™ is designed with a unique 8-vane impeller to dampen hydraulic noise.
  2. The Megaflow™ is designed to optimize spa pump performance while using the least electrical energy.
  3. The Megaflow™ pump passed all Public Safety tests per UL Standard 1081.
  4. The Megaflow™ pump is powered by A.O.Smith/Magnetek/Emerson/Marathon Electric/Franklin Electric 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 Megaflow™ series has powered thousands of spas of different brands throughout the world since its introduction in 2005.


The Megaflow pump series will power your spa with the maximum pump efficiency and with the least hydraulic and vibrational noise. Our unique pump design with 2", 2.5" or 3" plumbing will put your spa performance ahead of your competition.

Our energy saver Model number MF523036 only draws 1.2 Amp on Low speed (276 Watt) and still pumps 59 gallons per minute to keep you electric spa heater cool. The cost of operation for our model MF523036 on Low speed is only $0.04 per hour (based on a U.S. national average electricity cost of $0.15 per kilowatt-hour). Our pumps are ETL listed (U.S.), CSA listed (Canada) and CE (Europe) approved.

Please check our pump performance curves as well as the readings of the decibel meter while the Megaflow pump is performing in the open and at maximum load.


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 View & Part List
Megaflow Exploded View
Both Intake and Discharge have the same threads and outer thread dimensions.


Megaflow 60Hz Series Megaflow 50Hz Series
Megaflow Performance Data
60Hz Performance Data

MF5-23036-50Hz Performance Data
Megaflow Performance Data
High Speed Performance Data

Low Speed Performance Data

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: LifeSpas, Islander Spas, Burboa Manufacturing, Colorado Custom Spas, California Custom Spas, Blue Oasis Spas, Dolphin Spas, Diamante Spas, Life Spring Spas, U.S. Tooling and Southern Home Spas.


  CE Logo


**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.