🔧 Afras 10110 (AF75) Booster Pump – 0.75 HP Dual Voltage
High-performance booster pump engineered for powerful pressure-side pool cleaning
💧 Product Overview
The Afras 10110 (Model AF75) is a 0.75 HP single-speed booster pump designed to deliver high-pressure water flow for pressure-side automatic pool cleaners. Manufactured by Afras Industries in Westlake Village, California, this dual-voltage pump operates on either 115V or 230V (60Hz) using a convenient built-in voltage selection switch, making it compatible with virtually any residential pool electrical system.
With a maximum flow rate of 22 GPM (1,320 GPH) and an impressive total dynamic head (TDH) of 156 feet, the Afras 10110 provides ample pressure to power leading pressure-side pool cleaners including Polaris 180, 280, 380, and 480 models. The pump features 3/4″ female pipe thread (FPT) connections on both suction and discharge ports for straightforward plumbing integration. CSA certified for use in the United States and Canada, with a 1-year manufacturer warranty, the Afras 10110 is a proven, reliable choice for pool owners seeking a high-quality booster pump at a competitive price.
⭐ Key Features
✅ 0.75 HP Single-Speed Motor – Delivers consistent high pressure for automatic pool cleaners at 12.8A (115V) or 6.4A (230V)
✅ Dual Voltage Compatibility – Factory wired for 115V with built-in voltage selection switch for easy conversion to 230V
✅ 22 GPM Maximum Flow Rate – 1,320 gallons per hour ensures thorough pool cleaner coverage and debris pickup
✅ 156 ft Total Dynamic Head – One of the highest head pressures in the booster pump category for powerful cleaning performance
✅ 3/4″ FPT Connections – Female pipe thread on both suction and discharge for versatile plumbing options
✅ Polaris PB4-60 Replacement – Direct drop-in replacement for Polaris PB4-60, Pentair LA01N, and other major booster pumps
✅ CSA Certified – Listed with CSA for safe operation in the United States and Canada
✅ Quiet Operation – Engineered for reduced noise during operation
✅ Automatic Reset Thermal Protector – Built-in motor protection against overheating for extended pump life
✅ Made in USA – Manufactured by Afras Industries in Westlake Village, California
⚙️ Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | Afras Industries |
| Model | AF75 |
| MPN | 10110 |
| Pump Type | Booster Pump |
| Application | Pressure-Side Pool Cleaners |
| Motor Power | 0.75 HP |
| Motor Rating | 1.50 |
| Speed | Single Speed |
| Voltage | 115V / 230V (Dual Voltage) |
| Frequency | 60 Hz |
| Phase | Single |
| Amperage (115V) | 12.8 A |
| Amperage (230V) | 6.4 A |
| Maximum Flow Rate | 22 GPM / 1,320 GPH |
| Total Dynamic Head (TDH) | 156 ft |
| Suction Port | 3/4″ FPT (Female Pipe Thread) |
| Discharge Port | 3/4″ FPT (Female Pipe Thread) |
| Suction Style | Center |
| Discharge Style | Center |
| Drain Plug Location | 6 o’clock |
| Maximum Water Temperature | 104°F (40°C) |
| Factory Wiring | 115V (field-convertible to 230V) |
| Voltage Selection | Built-in switch on motor |
| Priming | Flooded suction (not self-priming) |
| Thermal Protection | Automatic reset thermal protector |
| Certification | CSA (US and Canada) |
| Warranty | 1 Year Manufacturer |
🔌 Electrical Requirements
| Electrical Spec | Requirement |
|---|---|
| Supply Voltage | 115V or 230V (selectable) |
| Frequency | 60 Hz |
| Phase | Single |
| Full Load Amps (115V) | 12.8 A |
| Full Load Amps (230V) | 6.4 A |
| Bonding Conductor | #8 AWG solid copper minimum (#6 AWG in Canada) |
| Bonding Requirement | Connect to all metal parts of pool structure, electrical equipment, metal conduit, and metal piping within 5 ft of pool/spa walls |
⚠️ IMPORTANT:
All electrical work must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and local building codes.
The pump is factory wired for 115V. To convert to 230V operation, follow the instructions on the motor nameplate. The voltage selection switch is located on the motor.
A dedicated circuit is required — do not share with other appliances.
GFCI (Ground Fault Circuit Interrupter) protection is required for all pool and spa installations.
Install a circuit breaker sized appropriately for the selected voltage and amperage.
🔗 Compatibility Guide
This Pump:
📍 Suction: 3/4″ FPT, Center 📍 Discharge: 3/4″ FPT, Center 📍 Voltage: 115V/230V Dual (switchable) 📍 Drain Plug: 6 o’clock position
Compatible Pressure-Side Pool Cleaners:
- ✅ Polaris 180
- ✅ Polaris 280
- ✅ Polaris 380
- ✅ Polaris 480
- ✅ Other pressure-side pool cleaners requiring a 3/4 HP booster pump
Direct Replacement For:
| Original Pump | Part Number |
|---|---|
| Polaris Booster Pump | PB4-60 |
| Pentair Booster Pump | LA01N / EC-LA01N |
| Polaris Booster Pump | PB4-60Q |
| Polaris Booster Pump | POLPB460 |
| Polaris Booster Pump | PVPB460 |
| Polaris Booster Pump | POL-20-506 |
| Generic Booster Pump | 60015 |
Cross-Reference / Alternate Booster Pumps:
| Manufacturer | Model |
|---|---|
| Waterway Universal | 3810430-1PDA |
| Waterway Universal | 3810430-OPDA |
| Polaris (Zodiac) | 3260-A001 |
🛠️ Installation Requirements
Mounting:
| Requirement | Specification |
|---|---|
| Mounting Position | As shown in manufacturer diagram (motor on top) |
| Base | Solid, level surface — secure pump to prevent movement |
| Location | Install on discharge side of main circulation pump |
| Ventilation | Ensure adequate airflow around motor for cooling |
Plumbing:
| Connection | Size |
|---|---|
| Suction Inlet | 3/4″ FPT (minimum) |
| Discharge Outlet | 3/4″ FPT |
| Recommended Pipe Size | 3/4″ minimum ID; 1-1/2″ recommended for dedicated return line |
| Pipe Type | Rigid PVC |
Installation Notes:
⚠️ This pump is flooded suction only — it is NOT self-priming. The main circulation pump must be running before operating the booster pump.
⚠️ Never run the booster pump when the circulation pump is off. This will cause damage.
⚠️ Plumb the booster pump inlet higher and upstream from any electro-chlorinator, with maximum distance from the chlorinator.
⚠️ A separate time clock or manual switch is recommended to control the booster pump. Set it to turn on 30-60 minutes after the circulation pump starts, and turn off 30-60 minutes before the circulation pump shuts off.
⚠️ After plumbing, verify water flow by turning on the circulation pump and disconnecting the inlet supply line at the booster pump — water should flow freely from the line.
⚠️ Ensure proper grounding and bonding per NEC requirements using #8 AWG solid copper conductor minimum.
⚠️ Secure the pump firmly in position to prevent movement. Failure to do so could cause piping to break or pump failure.
🔧 Maintenance Guide
Routine Maintenance:
| Task | Frequency | Notes |
|---|---|---|
| Check for leaks | Monthly | Around seal, connections, and drain plug |
| Inspect plumbing connections | Monthly | Tighten if needed |
| Verify water flow | Monthly | Ensure adequate flow to booster pump inlet |
| Check amperage | Annually | Should match nameplate rating (12.8A at 115V or 6.4A at 230V) |
| Inspect motor vents | Quarterly | Keep clear of debris for proper cooling |
| Verify mounting security | Quarterly | Ensure pump is firmly secured to prevent movement |
| Check time clock synchronization | Periodically | Ensure booster starts after and stops before circulation pump |
Warning Signs — Replace Pump If:
- Unusual noise (grinding, screeching, or excessive vibration)
- Water leaking from seal area
- Motor trips breaker repeatedly
- Reduced water flow or cleaning performance
- Motor overheating frequently (thermal protector cycling)
- Visible corrosion or housing damage
Winterizing:
If installed in a freezing climate, drain all water from the pump and disconnect plumbing from the inlet and outlet ports before winter. Failure to winterize can cause freeze damage not covered by warranty.
Replacement Parts:
| Part | Afras Part Number |
|---|---|
| Wet End Assembly | 11110 |
| Impeller (0.75 HP, 6″ OD, Closed Face) | 12110 |
| Base | 14110 |
🎯 Ideal Applications
| Application | Suitability | Notes |
|---|---|---|
| 💧 Pressure-side pool cleaner booster | ✅ Yes | Primary application — powers Polaris 180/280/380/480 and similar cleaners |
| 💧 Pool water circulation boost | ✅ Yes | Increases system pressure and water flow |
| ♨️ Hot tub / spa jet pump | ❌ No | Not designed for hot tub jet applications |
| ♨️ Spa circulation pump | ❌ No | Not a circulation pump |
| 🛁 Whirlpool bath pump | ❌ No | Not designed for bath applications |
❓ Frequently Asked Questions
Q: What horsepower is this pump? A: The Afras 10110 is a 0.75 HP (3/4 HP) single-speed booster pump.
Q: Does this pump work with 115V and 230V? A: Yes. The pump is factory wired for 115V (12.8A) and includes a built-in voltage selection switch for easy conversion to 230V (6.4A). Follow the instructions on the motor nameplate to change voltage. All electrical work must be performed by a licensed electrician.
Q: Will this replace my Polaris PB4-60? A: Yes. The Afras 10110 is a direct drop-in replacement for the Polaris PB4-60 and Pentair LA01N booster pumps, with the same 3/4″ FPT connections and 0.75 HP motor.
Q: What pool cleaners is this compatible with? A: This booster pump is compatible with Polaris 180, 280, 380, 480, and other pressure-side pool cleaners that require a 3/4 HP booster pump.
Q: Is this pump self-priming? A: No. The Afras 10110 is a flooded suction pump and must only be operated when the main circulation pump is running. Never run the booster pump with the circulation pump off.
Q: What size are the connections? A: Both suction and discharge ports are 3/4″ FPT (Female Pipe Thread) with center connections. The manufacturer recommends minimum 3/4″ ID pipe, with 1-1/2″ recommended for the dedicated return line.
Q: What certification does this pump have? A: The Afras 10110 is CSA certified for safe use in the United States and Canada.
Q: What warranty is included? A: The pump includes a 1-year manufacturer warranty from the date of installation. Contact Parts4Tubs for full warranty terms.
Q: How do I know if my booster pump needs replacing? A: Signs include unusual noise (grinding or screeching), water leaking from the seal, reduced cleaning performance, the motor tripping the circuit breaker, or frequent thermal protector cycling.
Q: What is the maximum water temperature? A: The maximum water temperature is 104°F (40°C).
Q: Do I need a separate timer for this pump? A: Afras recommends a separate time clock or manual switch. Set the booster pump to turn on 30-60 minutes after the circulation pump starts and turn off 30-60 minutes before the circulation pump shuts off.
📥 Downloads & Resources
📄 Afras Booster Pump Installation Manual (PDF) – Installation instructions, wiring, plumbing, and warranty information
🏆 Why Choose the Afras 10110 Booster Pump
✅ Powerful 0.75 HP Motor – Delivers 22 GPM and 156 ft TDH for thorough pressure-side pool cleaning
✅ Dual Voltage Flexibility – Built-in voltage switch for easy 115V or 230V operation without motor replacement
✅ Direct Drop-In Replacement – Replaces Polaris PB4-60, Pentair LA01N, and other major booster pumps with no modifications
✅ CSA Certified Quality – Tested and certified for safe residential pool use in the US and Canada
✅ Built-In Motor Protection – Automatic reset thermal protector prevents overheating damage
✅ Made in America – Manufactured by Afras Industries in Westlake Village, California
✅ 1-Year Warranty – Full manufacturer warranty for peace of mind
🤝 Why Buy From Parts4Tubs
✅ US-based support for American customers
✅ Fast shipping across the United States
✅ Expert advice from pool and spa specialists
✅ Competitive pricing in USD
✅ Full warranty support
✅ Hassle-free returns
✅ Replacement parts available (wet end, impeller, base)
✅ Dedicated customer service team
✨ Summary
The Afras 10110 (AF75) is a 0.75 HP dual-voltage booster pump delivering 22 GPM and 156 ft TDH for powerful pressure-side pool cleaning. Compatible with Polaris 180, 280, 380, and 480 cleaners, it serves as a direct replacement for the Polaris PB4-60 and Pentair LA01N. Factory wired for 115V with a built-in voltage selection switch for 230V conversion, featuring 3/4″ FPT connections, automatic thermal protection, and CSA certification. Made in the USA by Afras Industries, backed by a 1-year warranty. Order today from Parts4Tubs for fast US shipping.
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Hot Tub Pump Collar & Union Size Chart
| Union Size | Collar Size | Thread OD | Union OD | O-Ring Size |
|---|---|---|---|---|
|
1.5"
Female Buttress
Thread (FBT) |
2.5" / 64mm
(Tip to Tip)
Measurement |
2-1/2"
64mm
|
2-13/16"
71mm
|
2-5/16" OD
59mm
|
|
2"
Female Buttress
Thread (FBT) |
3.1" / 78mm
(Tip to Tip)
Measurement |
3-1/16"
78mm
|
3-3/8"
81mm
|
2-15/16" OD
75mm
|
|
2.5"
Female Buttress
Thread (FBT) |
3.6" / 91mm
(Tip to Tip)
Measurement |
3-5/8"
91mm
|
4-1/4"
108mm
|
3-7/16" OD
87mm
|
Important Notes
How do I Replace a Hot Tub Pump?
Here's a general step-by-step guide on how to replace a hot tub pump. Keep in mind that the specific steps may vary depending on your hot tub's make and model, so it's essential to consult your hot tub's manual for model-specific instructions. If you're not comfortable with this procedure, it's a good idea to seek professional assistance.
Materials You'll Need:
- Replacement pump
- Pipe wrench
- Adjustable wrench
- Screwdriver
- Pipe sealant (thread tape or plumber's putty)
- PVC primer and cement (if you have PVC plumbing)
- Teflon tape (for threaded connections)
Procedure:
-
Turn Off the Power: Before you begin, ensure the hot tub's power supply is turned off at the circuit breaker or disconnect switch. Safety should always be a priority when working with electrical components.
-
Drain the Hot Tub: If your hot tub is not already empty, you'll need to drain it. Follow your hot tub's manual or manufacturer's instructions for proper draining. (You might not need to do this if you can lock the pump off with the gate valves)
-
Locate the Pump: Identify the location of the existing pump in your hot tub. It's usually located near the equipment area or in a designated pump compartment.
-
Disconnect the Electrical Wiring: Carefully disconnect the electrical wiring from the old pump. This typically involves removing the electrical conduit cover, unscrewing wire nuts, and disconnecting the wires from the terminals. Be sure to note the wire connections or take a picture for reference when connecting the new pump.
-
Disconnect the Plumbing: Depending on your hot tub's plumbing setup, you'll need to disconnect the plumbing connections to the pump. Use a pipe wrench or adjustable wrench to loosen and remove the fittings. Be prepared for some water spillage when disconnecting the plumbing.
-
Remove the Old Pump: Once the electrical and plumbing connections are detached, carefully remove the old pump from its mounting position. Some pumps may be secured with mounting brackets or bolts.
-
Prepare the New Pump: If the new pump is not pre-assembled, you may need to attach fittings, unions, or adapters to match your hot tub's plumbing. Ensure that you use the appropriate sealant or Teflon tape on threaded connections to prevent leaks.
-
Mount the New Pump: Position the new pump in the same location as the old one and secure it in place using the mounting brackets or bolts.
-
Reconnect Plumbing: Reconnect the plumbing to the new pump, ensuring that all connections are tight and secure. If your hot tub uses PVC plumbing, use PVC primer and cement to bond the connections properly.
-
Reconnect Electrical Wiring: Reconnect the electrical wiring to the new pump, following the notes or pictures you took earlier. Make sure all wires are properly connected and secure.
-
Turn On the Power: Restore power to the hot tub by switching on the circuit breaker or reconnecting the disconnect switch.
-
Test the Pump: Turn on the hot tub's pump to ensure that it's working correctly. Check for any signs of leaks or irregularities in the plumbing connections.
-
Refill the Hot Tub: Once you've confirmed that the new pump is functioning properly, refill the hot tub with water.
-
Check for Leaks: Inspect the plumbing connections for any leaks. If you find any, turn off the pump, drain the tub again, and reseal the connections as needed.
-
Monitor: Keep an eye on the pump and plumbing for the next few days to ensure everything is functioning correctly and that there are no further issues.
Remember that this is a general guideline, and the specific steps may vary based on your hot tub's design. If you're unsure or uncomfortable with any aspect of this process, please do get in touch, happy to help.
How do I know what size hot tub pump I have?
Determining the size of your hot tub pump is an important step when it comes to maintenance or replacement. To find out the size of your hot tub pump, follow these steps:
-
Check the Manual: The easiest way to determine the size of your hot tub pump is to consult the owner's manual or user documentation that came with your hot tub. The manual typically contains detailed information about the specifications and components of your hot tub, including the pump.
-
Look at the Pump Housing: If you don't have access to the manual or it doesn't provide the information you need, inspect the pump itself. Most hot tub pumps have a label or plate on the pump housing that displays essential details, including the pump's model number, manufacturer, and specifications. You can then send that to me or Google it.
-
Measure the Pump: If the label is missing or damaged, you can measure the pump's dimensions. Measure the diameter of the pump's wet end (the part where the water flows) and the length of the wet end. These measurements can help identify the size and capacity of the pump.
-
Consult the Manufacturer: If you can't find the information on the pump or in the manual, contact the hot tub manufacturer or a reputable dealer. Provide them with your hot tub's model and serial number, and they should be able to identify the correct pump size for your specific hot tub.
-
Online Research: You can also search online using the pump's model number or hot tub's make and model. Many manufacturers provide detailed information about their products on their websites, and you may find specifications for your pump model.
Once you have determined the size and specifications of your hot tub pump, you can proceed with maintenance, repairs, or replacement if necessary. Keep in mind that replacing a hot tub pump with the same size and capacity as the original is crucial to ensure proper water circulation and filtration in your hot tub. If you're unsure about any aspect of this process, get in touch, always happy to help.







