🔧 Gecko Aqua-Flo Flo-Master FMXP3 Spa Pump – 2.5 HP 2-Speed 230V (08326000-2041)

Engineered for swim spas and high-flow jets with unmatched efficiency

💧 Product Overview

The Gecko Aqua-Flo Flo-Master XP3 (FMXP3) is a high-performance 2-speed jet pump built for today’s larger spas with multiple jets demanding increased water flow. Rated at 2.5 operational horsepower with a robust 56-frame thru-bolt motor, the FMXP3 delivers exceptional jet performance through hydraulic efficiency rather than brute force. Operating on 230V/60Hz, this dual-speed pump features 2-1/2″ center suction and side discharge ports with Male Buttress Thread (MBT) connections, making it ideal for swim spas, high-flow spa applications, and multi-jet configurations. The XP3’s greater flow capacity allows spas to run more jets per pump or eliminate the need for diverter valves, improving spa user convenience and lowering equipment costs. Designed and manufactured by Gecko Alliance (Aqua-Flo), this pump features thermal motor protection for extended lifespan and a rotatable wet end for flexible installation.

⭐ Key Features

• ✅ 2.5 Operational HP Motor – Continuous duty 56-frame thru-bolt motor provides powerful, reliable jet performance for large spas and swim spas
• ✅ Dual-Speed Operation – 2-speed motor allows high-speed jet power and low-speed energy-efficient filtration/circulation
• ✅ 2-1/2″ Intake & Discharge – Large port size (3-11/16″ OD) provides up to 30% higher flow rate compared to equivalent standard pumps
• ✅ Maximum Flow Rate Up to 325 GPM – Designed to deliver high-volume water flow for multi-jet spa configurations (XP3 series maximum per Gecko Alliance)
• ✅ 56-Frame Thru-Bolt Motor – Heavy-duty motor frame provides added strength and durability for demanding spa applications
• ✅ Rotatable Wet End – Wet end can be rotated for easy installation and flexible plumbing configurations
• ✅ Thermal Motor Protection – Built-in thermal overload protection extends motor life by preventing overheating damage
• ✅ Side Discharge Configuration – Center suction with side discharge design optimized for spa equipment compartments
• ✅ Compression Fittings Included – Pump ships with two compression fittings for ease of installation and maintenance
• ✅ California Title 20 Compliant – Meets California energy efficiency standards for spa equipment
• ✅ Multi-Position Drain Plug – Drain plug positions at 3, 4, 6, and 9 o’clock for flexible drainage orientation

⚙️ Technical Specifications

Specification	Value
Pump Type	Jet Pump (Portable Spa Pump)
Pump Model	Flo-Master XP3 (FMXP3)
Manufacturer	Aqua-Flo by Gecko Alliance
Part Number	08326000-2041
Operational Horsepower	2.5 HP
Speed Settings	2-Speed (Dual Speed)
Voltage	230V
Frequency	60 Hz
Frame Type	56 Frame Thru-Bolt
Suction Port Size	2-1/2″ MBT (Male Buttress Thread)
Suction Style	Center
Suction Connection OD	3-11/16″
Discharge Port Size	2-1/2″ MBT (Male Buttress Thread)
Discharge Style	Side Discharge
Discharge Connection OD	3-11/16″
Maximum Flow Rate	Up to 325 GPM (XP3 series)
Maximum Total Head	30.8 ft (9.4 m)
Drain Plug Positions	3, 4, 6, 9 o’clock
Pump to Motor Foot Types	3
Volute Fastening	8 Screws
Impeller Part Number	91698250
Volute/Sealplate Number	92770735
Seal Part Number	92500150 (or updated 92500171)
Seal Type	PS-200, 5/8″ Shaft
Certifications	California Title 20 Compliant

⚡ Electrical Requirements

Electrical Spec	Requirement
Supply Voltage	230V
Frequency	60 Hz
Phase	Single Phase
High Speed Amperage	(typically 10.9A – 11.4A per distributor sources)
Low Speed Amperage	(typically 3.2A – 3.6A per distributor sources)
Bonding Wire	No. 8 AWG (8.4 mm²) solid copper conductor per NEC

⚠️ IMPORTANT:

All electrical work must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and local building codes.

Hot tubs require GFCI (Ground Fault Circuit Interrupter) protection.

A dedicated circuit is required — do not share with other appliances.

Upon installation, the motor must be bonded with no smaller than a No. 8 AWG solid copper conductor per NEC. The bonding connection should run from the accessible wire connector on the motor to all metal parts of the spa or hot tub structure and to all electrical equipment, metal conduit, and metal piping within 5 feet (1.5 m) of the inside walls of the spa or hot tub.

For electrical connections, refer to the wiring diagram on the motor rating plate.

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🔗 Compatibility Guide

This Pump:

• 📍 Frame: 56 Frame Thru-Bolt
• 📍 Wet End / Suction: 2-1/2″ MBT (Center Suction)
• 📍 Discharge: 2-1/2″ MBT (Side Discharge)
• 📍 Connection OD: 3-11/16″ (suction and discharge)

How to Identify Your Pump Connection Size:

Outside Diameter Measurement	Pipe Size
Approximately 2-3/8″	1-1/2″
Approximately 3″	2″
Approximately 3-5/8″ to 3-11/16″	2-1/2″

Compatible Spa Brands (Verified):

This pump is used on many manufacturer spas in the industry, including: Coast Spas, Pacific Spas, Arctic Spas, and Hydropool, among others.

⚠️ Important: Only an XP3 pump should be used to replace an XP3 pump of the same size. The XP3 has a unique wet end design with 2-1/2″ ports that is not interchangeable with XP2 or XP2e pumps.

🔄 Alternate & Replacement Part Numbers

This pump (08326000-2041) replaces the following part numbers:

Alternate Part Number	Notes
08326000-2341	Previous version, now ships as 08326000-2041
389427	Cross-reference replacement
5121-521	Cross-reference replacement
R63MWDTA-277	Motor cross-reference
34-402-5300	Horizon (HZN) part number

Additional Cross-Reference Part Numbers (2.5 HP XP3 Series):

08315792-2341, 08815000-2341, 08815001-7341, 08815792-2341, 08025000-2041, 08025737-2000, 08125000-2041, 08125761-2000, 08225001-2000, 08225737-2000, 08325000-7341, 08325453-2341, 08325453-7341, 08325761-2000, 08325761-2041, 08325761-2341, 08325761-7000, 08325783-2300, 08325792-2041, 08325792-2341, 08326001-2341, 08326792-2341

⚠️ Always verify your existing pump’s exact specifications (voltage, frame size, HP, port sizes, and discharge direction) before ordering a replacement.

🛠️ Installation Requirements

Mounting:

Requirement	Specification
Mounting Position	Horizontal (below water level / flooded suction)
Base	Solid, level surface with vibration dampening
Ventilation	Ensure all motor openings are free from debris and obstructions
Access	Provide adequate access around pump for inspections and maintenance
Location	Install as close to the water source as possible for optimal performance

Plumbing:

Connection	Size
Suction	2-1/2″ MBT (Center)
Discharge	2-1/2″ MBT (Side)
Fittings	Compression fittings included

Installation Notes:

⚠️ Pump must be installed below water level (flooded suction). Ensure the pump casing (volute) is completely filled with water before starting.

⚠️ Never run pump dry — causes seal damage and motor overheating.

⚠️ For Aqua-Flo compression fittings, DO NOT use any Thread Seal Tape (PTFE tape), Teflon Quick-Seal Thread Sealing Compound, Plasto-Joint Stik, or any other sealants. Hand tighten only — do not use a wrench.

⚠️ For NPT threaded connections ONLY, use Thread Seal Tape (PTFE tape) or sealants formulated specifically for plastics.

⚠️ Ensure proper grounding and bonding per NEC requirements with No. 8 AWG solid copper conductor.

⚠️ GFCI protection is required by code for all hot tub and spa installations.

🔩 Maintenance Guide

Routine Maintenance:

Task	Frequency	Notes
Check for leaks	Monthly	Inspect around seal plate and union connections
Inspect unions/fittings	Monthly	Hand tighten compression fittings if needed — do not over-tighten
Clean strainer/filter	As needed	Remove debris to maintain proper water flow
Check amperage draw	Annually	Compare to motor nameplate rating
Inspect motor vents	Quarterly	Keep all motor openings free from debris and obstructions
Check mounting bolts	Quarterly	Tighten if vibration has loosened them
Winterization	Before freezing	Disconnect power, drain thoroughly, clean debris, store in dry area

Warning Signs — Replace Pump If:

• Unusual noise (grinding, screeching, humming without operation)
• Water leaking from the seal plate area
• Motor trips breaker repeatedly
• Reduced water flow to jets
• Motor overheating or shutting off on thermal protection

Seal Replacement:

• 📍 Seal Part Number: 92500150 (updated version: 92500171)
• 📍 Seal Type: PS-200 (Viton grade available)
• 📍 Shaft Size: 5/8″
• ⚠️ Replace seal at first sign of leakage to prevent motor damage

🎯 Ideal Applications

Application	Suitability	Notes
♨️ Hot tub jet pump	✅ Yes	Designed for large, multi-jet hot tub configurations
♨️ Swim spa pump	✅ Yes	Ideal for swim spas requiring high-flow performance
♨️ Booster jet pump	✅ Yes	Excellent as a booster pump for additional jet zones
♨️ Spa circulation (low speed)	✅ Yes	Low speed provides energy-efficient filtration and circulation
🛁 Whirlpool bath	⚠️ Verify	Verify voltage and plumbing compatibility for bath applications

❓ Frequently Asked Questions

Q: What horsepower is this pump? A: This pump is rated at 2.5 operational horsepower (OPHP) with a continuous duty 56-frame motor. Some sources may reference a higher total horsepower (THP) rating, but the 2.5 HP operational rating represents the pump’s continuous running power.

Q: Will this fit my hot tub? A: This pump uses a 56 Frame Thru-Bolt motor with 2-1/2″ MBT suction and discharge ports (3-11/16″ OD). Measure your existing pump’s frame size, port outside diameter, and discharge direction (side discharge) to confirm compatibility. Only replace an XP3 with another XP3 of the same HP rating.

Q: What voltage does this pump require? A: 230V / 60Hz single phase. All electrical installation must be performed by a licensed electrician in accordance with the NEC. Using the wrong voltage will damage the motor and void the warranty.

Q: Does this pump run on 115V or 230V? A: This specific model (08326000-2041) is a 230V pump. Verify your existing pump’s voltage before ordering — 115V and 230V versions are not interchangeable.

Q: Is this a single or dual speed pump? A: This is a 2-speed (dual speed) pump. High speed provides full jet power for hydrotherapy, while low speed offers energy-efficient circulation and filtration.

Q: What size are the ports? A: Both suction (center) and discharge (side) ports are 2-1/2″ Male Buttress Thread (MBT). The outside diameter measures approximately 3-11/16″. The XP3 uses larger 2-1/2″ ports compared to the 2″ ports on XP2 and XP2e pumps.

Q: What is the maximum flow rate? A: The XP3 pump series delivers a maximum flow rate of up to 325 GPM, per Gecko Alliance specifications. This is the highest flow rate in the Aqua-Flo spa pump lineup, exceeding both the XP2 (200 GPM) and XP2e (260 GPM) series.

Q: What is the maximum total head? A: The maximum total head for the XP3 (082/083 series) is 30.8 feet (9.4 meters), as stated in the official Gecko Alliance pump techsheet.

Q: Can I use thread seal tape on the fittings? A: NO — do not use any thread seal tape, Teflon compound, or sealants on the Aqua-Flo compression fittings. Hand tighten only. Thread seal tape should ONLY be used on NPT threaded connections.

Q: What seal does this pump use? A: This pump uses the Aqua-Flo seal #92500150 (updated to #92500171), a PS-200 type seal with 5/8″ shaft. Viton grade seals are recommended for spa chemical resistance and longer life.

Q: What warranty is included? A: This is a brand new OEM pump backed by the manufacturer’s warranty. Contact Parts4Tubs for full warranty terms and details.

Q: How do I know if my pump needs replacing? A: Signs include unusual noise (grinding, screeching), water leaking from the seal area, reduced jet flow, the motor tripping the circuit breaker repeatedly, or the motor overheating and shutting down on thermal protection.

Q: Do I need a GFCI breaker? A: Yes, GFCI (Ground Fault Circuit Interrupter) protection is required by the National Electrical Code (NEC) for all hot tub and spa installations.

Q: Can I rotate the wet end for easier plumbing? A: Yes, the XP3 wet end can be rotated to accommodate different plumbing configurations, making installation more flexible.

🏆 Why Choose the Aqua-Flo Flo-Master XP3

• ✅ High-Flow Performance — Up to 325 GPM maximum flow rate, the highest in the Aqua-Flo spa pump lineup, delivering powerful jet performance for swim spas and large multi-jet configurations
• ✅ Energy-Efficient Design — Dual-speed operation allows energy-saving low-speed circulation while providing full-power high-speed jet performance on demand
• ✅ Heavy-Duty Construction — 56-frame thru-bolt motor with thermal protection ensures durability and long service life in demanding spa environments
• ✅ Flexible Installation — Rotatable wet end, multi-position drain plug (3, 4, 6, 9 o’clock), and included compression fittings simplify installation and plumbing
• ✅ Proven Reliability — Manufactured by Gecko Alliance, a trusted name in the spa industry for nearly three decades, known for quality control systems, pumps, and accessories
• ✅ California Title 20 Compliant — Meets energy efficiency standards, helping reduce long-term operating costs

🤝 Why Buy from Parts4Tubs

• ✅ US-based support for American customers
• ✅ Fast shipping across the United States
• ✅ Expert advice from spa and hot tub specialists
• ✅ Competitive pricing in USD
• ✅ Full warranty support on OEM products
• ✅ Hassle-free returns
• ✅ Replacement seals, impellers, and wet end parts available
• ✅ Dedicated customer service team

✨ Summary

The Gecko Aqua-Flo Flo-Master XP3 (08326000-2041) is a 2.5 HP, 2-speed, 230V/60Hz jet pump engineered for swim spas and large hot tubs with high-flow jet requirements. Featuring a robust 56-frame thru-bolt motor, 2-1/2″ MBT center suction and side discharge ports, rotatable wet end, and thermal motor protection, the FMXP3 delivers up to 325 GPM of flow — the highest in Aqua-Flo’s spa pump lineup. Dual-speed operation provides powerful jets on high speed and energy-efficient circulation on low speed. Order now from Parts4Tubs for fast US shipping and expert support.

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	Magic Plastics Union 0602-15 (1.5″ Pump Union) | 1-1/2″S x 1-1/2″FBT Union, Pump, Magic, 1-1/2"S x 1-1/2"FBT (Industry Standard) w/ O-Ring	$6.36 Max: 475 Min: 1 Step: 1 Add to cart
	Magic Plastics Union 0602-20 (2″ Pump Union) | 2″S x 2″FBT w/ O-Ring Union, Pump, Magic, 2"S x 2"FBT (Industry Standard) w/ O-Ring	$8.00 Max: 959 Min: 1 Step: 1 Add to cart
	Waterway Union 400-6010 | 2-1/2″ Union Nut with 2-1/2″ Slip tailpiece and o-ring (2.5″ union) Union, Pump, Waterway, 2-1/2"FBT x 2-1/2"S	$14.77 Max: 146 Min: 1 Step: 1 Add to cart
	1 Speed Pump / Blower / AMP Cord | 21086 Amp Plug, Pump, 1-Speed, 14/3, 4-Pin, 5' Cord, White	$24.71 Max: 432 Min: 1 Step: 1 Add to cart
	Balboa Amp Plug 21087 (For 2 Speed Pumps) Amp Plug, Pump 1 (2-Speed) 14/4, 72" Long, White	$31.72 Max: 216 Min: 1 Step: 1 Add to cart

Hot Tub Pump Collar & Union Size Chart

Imperial & Metric Specifications

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

The union "size" (1.5", 2", 2.5") is nominal and doesn't correspond to any actual measurement.

Collar size is measured from thread tip to thread tip on the pump outlet.

Most hot tub pumps use Female Buttress Thread (FBT) - 98% of applications.

O-ring gaskets may vary between manufacturers - measure your existing gasket for accuracy.

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:

1. 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.

2. 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)

3. 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.

4. 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.

5. 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.

6. 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.

7. 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.

8. 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.

9. 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.

10. 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.

11. Turn On the Power: Restore power to the hot tub by switching on the circuit breaker or reconnecting the disconnect switch.

12. 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.

13. Refill the Hot Tub: Once you've confirmed that the new pump is functioning properly, refill the hot tub with water.

14. 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.

15. 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:

1. 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.

2. 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.

3. 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.

4. 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.

5. 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.