Green Technology
See our Energy Efficient,
Money Saving,
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
Green Executive Pump
2" x 2" Plumbing 2½" x 2"
UV Generators
Balboa Heaters
Spa Heaters
Digital Boards
Spa Pump Motors
Electrical Components
Plumbing Components
General Part List
Table ()
Magnaflow (discharge up)
[Fig. ]
Magnaflow (discharge up)
[Fig. ]

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

To Order Any Size Pump From Table 4 or Table 5 and Pump Accessories from Table 7:
. Find your desired pump model number from Table 4, Table 5 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 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 (see Table 2 above) are identified on the model number in 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. Pumps with prefix 'MM' are 48-Frame and pumps with prefix 'MS' are 56-Frame, however, both 'MM' and 'MS' pumps of equivalent model number have the same hydraulic performance.

Dimensions for all 56-Frame Pumps in Table 4
[Fig. ]
Dimensions for all 48-Frame Pumps in Table 5
[Fig. ]

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


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 shown on Table 2 and Table 3 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
Any Size 56-Frame Pump Volute and Faceplate
Both Intake and Discharge have
the same threads and
outer thread dimensions.
Any Size 56-Frame Pump Volute Rearview
Any Size 56-Frame Pump Volute
Part #1112S (rearview)
Any Size 48-Frame Pump Volute and Faceplate
Both Intake and Discharge have
the same threads and
outer thread dimensions.
Any Size 48-Frame Pump Volute Rearview
Any Size 48-Frame Pump Volute
Part #1112 (rearview)
Any Size Pump Exploded View
ETL United States
United States

ETL Canada Logo

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: ThermoSpas, LifeSpas, Islander Spas, Catalina Spas, Diamante Spas, Life Spring Spas and many others.


Since 1987 Acura Spa Systems have been manufacturing spa and hot tub pumps for all spas and portable hot tubs. Our pumps are designed and manufacture in the USA. Our pumps are also designed with unique noise reduction impellers. Our pumps are replacements to all waterway pumps. We can replace waterway pumps with 1.5", 2", 2.5" and 3" plumbing. On all our pumps and since 1987 we use the buttress thread form designed to handle extremely high axial thrust in one direction. The buttress thread form has the same low friction properties as a square thread form but at about twice the shear strength due to the long thread base. Waterway started producing pumps in 1991. Waterway also uses the same buttress thread form for the outer thread diameter on all waterway pumps for portable hot tubs. Waterway hot tub pumps are designed with different dimension for the outer thread diameter. For 1.5"X 1.5" plumbing the outer thread diameter of the inlet and outlet of the waterway spa pumps are approximately 2.45". Our Maverick pumps Maverick would be direct plumbing replacement for all side discharge waterway hot tub pumps. For 2.0"X 2.0" plumbing the outer thread diameter of a waterway pump with side discharge would be Approx. 3.10" for the pump intake and the pump discharge. Our Magnaflow pumps are replacements for waterway hot tub pumps 2" X 2" side discharge spa pumps. Most of these pumps are known as Executive 56 spa pump and others are known as Executive 48 spa pump and some are also called the BOSS spa pump. For 2.5"X 2.0" plumbing Some Executive 56 pumps are designed with 3.60" OD on the intake side of the pump, however the discharge side of the same executive 56 is at approx. 3.10 outer thread diameter "OD". Our Green Executive pumps "GE series" are replacement for waterway pumps with 2.5" X 2" plumbing. When ordering you may select the proper voltage and amperage for your hot tub pump. When replacing an Impeller on a waterway executive spa pump, you need to remove the 8 screws located on the front cover of the hot tub pump. Insert a flat screw driver between the face plate and the back volute to separate the front plate from the volute of the executive pump. Rotate the waterway impeller counterclockwise to unscrew it from the motor shaft. Using a nut driver, loosen the 4 motor thru-bolts and remove the Viper pump volute from the motor. The pump seal is a press fit on the executive pump volute or on the Viper hot tub pump. Using a screw driver you may push it through the large opening of the Viper pump or the executive pump. You may use the 1092-AV seal as a replacement to all waterway pump seals including the Viper spa pump or the executive 56 spa pump. We do not use any parts manufactured by waterway. Using 1.5" rigid PVC pipe, hammer the shaft seal down in the waterway pump housing. It is recommended to using silicon on the U cup of the shaft seal between the viper pump volute and the U cup seal.


Description 16.4 Amps 56-frame 3722021-1D Waterway Pumps 2-speed, 230V, 16.4/4.8A Executive 56-frame 6.5" diameter, for 2" pvc pipe size, 3.1" diameter threads on inlet/outlet, SD/CS. PF-50-2N22C, High performance Waterway Hot Tub Pump, very strong A.O. Smith motor, split capacitor design, double shielded ball bearings. Replaces older Executive Pumps with Franklin or Century Motors. Viton Seals. P250E52024, labeled as 5hp but often relabeled 6hp or 7hp by spa manufacturers, 37220211d, and Waterway pumps are manufactured by Waterway Plastics and Made in the U.S.A. PF502N22C This pump is sometimes available with a US Motors motor #TT506. Sometimes labeled PF-45-2N22C. PF502N22C, PF-50-2N22F, Spa Pump, Hot Tub Pump. NOTE: 3.1" OUTSIDE DIAMETER INTAKE THREADS. Sometimes labelled 6.0 hp, or even 7.0 hp. PF-50-2N22M, also sometimes marked PF-40-2N22M, TT506, R63MWENB-4728


Description 8 Amp 56-frame PF-20-2N22C 3720821-13 Waterway Executive Spa Pump 2-speed, 230V, 8.0-10.0A 2hp Executive 56 frame 6.5" diameter 2" SD/ 2-1/2" CS. Pump has 3.7" outside diameter threaded inlet connection for union fitting of 2-1/2" PVC pipe size, and 3.1" threads on the discharge for 2" PVC pipe size. High performance Water Way Hot Tub Pump, very strong 187693 A.O. Smith motor, split capacitor design, double shielded ball bearings. Viton Seals. Dimension floor to top of discharge port is 8-1/4". P220E5252024. 372082113 PF202N22C, Waterway may sometimes produce this with a 10 amp motor please note if 8.0a is unavailable. Waterway makes Quality Filters, Pumps, white goods and accessories produced with NSF approved materials. Industry leader in providing the largest selection of SPA Products Waterway Pumps are manufactured by Waterway Plastics in the U.S.A. and are very high quality hot tub pumps. Waterway Pumps are newly manufactured, Waterway is a leading supplier of spa pumps for the Hot Tub & Spa Industries
Iron Might description: CP-18-1N11A Waterway Circ Pump Iron Might 3410030-1E 1-speed 115V 1.6A Circulation Pump, 48 frame motor, 1725 RPM, 60Hz 5.5 inch diameter motor. 2.4" Threaded connections. Nice circulation pump, rugged glass-filled ABS housing, 40 GPM, Viton seals, for 1-1/2 inch PVC pipe size. Uses UN-P15 pump unions, sold separately. SD/CS Pump head can be rotated to 3 or 9 o'clock position, and features 2 drain plugs for winterizing. CP181N11A 34100301E Iron Might Pump.


**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.