🔧 Gecko Aqua-Flo Flo-Master FMXP2 Spa Pump – 1.5 HP 2-Speed 115V (06115000-1040)

Precision-engineered jet power for large, heavily jetted hot tubs and swim spas

💧 Product Overview

The Gecko Aqua-Flo Flo-Master FMXP2 (model 06115000-1040) is a high-performance 2-speed jet pump built for today’s large, heavily jetted spas requiring increased water flow. Running on 115V/60Hz with a compact 48-frame motor, this 1.5 HP dual-speed pump delivers flow rates in excess of 140 GPM, easily outperforming every other 48-frame pump on the market while utilizing the same compact space requirements.

Manufactured by Gecko Alliance under the trusted Aqua-Flo brand, the FMXP2 features a high volumetric volute design that provides whisper-quiet operation and a fine-tuned impeller engineered for maximum water movement. The side discharge configuration and 2-inch Male Buttress Thread (MBT) connections on both suction and discharge make this pump a versatile replacement option for a wide range of spa systems. Compression fitting unions are included for easy, professional installation.

Dual-speed functionality allows you to run high speed for powerful jet therapy and low speed for energy-efficient filtration and circulation, giving you the best of both worlds in a single pump.

⭐ Key Features

• ✅ 1.5 HP Dual-Speed Motor – High speed for powerful jets, low speed for efficient filtration
• ✅ 48Y Frame (Thru-Bolt) – Compact motor frame fits the same space as standard 48-frame pumps
• ✅ 115V / 60Hz Operation – Standard North American residential electrical supply
• ✅ 2″ MBT Suction & Discharge – Center suction, side discharge with 2-inch Male Buttress Thread connections
• ✅ Flow Rates in Excess of 140 GPM – Outperforms other 48-frame pumps for large, heavily jetted spas
• ✅ High Volumetric Volute Design – Provides whisper-quiet operation with maximum water movement
• ✅ Fine-Tuned Impeller – Precision-engineered to move water with maximum performance
• ✅ Multiple Drain Plug Locations – 4, 6, and 9 o’clock positions for flexible installation
• ✅ Unions Included – Compression fittings come standard for easy, professional installation
• ✅ Thermally Protected Motor – Extends motor life expectancy by preventing overheating damage
• ✅ cULus / cURus Certified – Safety tested and listed for the North American market
• ✅ Discharge Orientation – Can be oriented in 4 positions for versatile plumbing configurations

⚙️ Technical Specifications

⚠️ Note on Amperage: The official Gecko product description for this model lists amperage as 14.4A (high speed) / 5.5A (low speed). However, some authorized distributor databases show 13.3A / 4.1A for this model number. Please verify the amperage rating on the motor nameplate of the pump you receive, and ensure your circuit is sized accordingly.

⚡ Electrical Requirements

⚠️ IMPORTANT ELECTRICAL SAFETY INFORMATION:

• All electrical wiring must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and local building codes.
• This pump must be connected to a circuit protected by a GFCI (Ground Fault Circuit Interrupter).
• A dedicated circuit is required. Do not share the circuit with other appliances.
• Upon installation, the motor must be bonded with No. 8 AWG solid copper conductor per NEC requirements, connecting from the motor’s accessible wire connector to all metal parts of the spa structure and all electrical equipment, metal conduit, and metal piping within 5 feet of the spa walls.
• Before working on any motor, ensure the electrical power is OFF at the main junction box.
• Refer to the wiring diagram on the motor rating plate for electrical connections.

🔗 Compatibility Guide

This Pump:

• 📍 Frame: 48Y (48 Frame Thru-Bolt)
• 📍 Wet End: 2 inch
• 📍 Discharge: 2″ MBT – Side discharge (4 orientation positions)
• 📍 Suction: 2″ MBT – Center suction
• 📍 Port OD (outside thread to outside thread): 3 inches

Frame Dimensions:

Union Collar Sizing (2″ MBT):

Alternate Part Numbers: 06115000-1040, 6115000, 1-00-0133, AF061150001040, 061150001040

🛠️ Installation Requirements

Mounting:

Plumbing:

Installation Notes:

• ⚠️ Pump must be installed below water level (flooded suction). Ensure the volute is completely filled with water before starting.
• ⚠️ Never run pump dry. Doing so will cause seal damage and void the warranty.
• ⚠️ For compression fittings (included unions): hand tighten only. Do NOT use a wrench. Do NOT use thread sealant tape (PTFE) on compression fittings.
• ⚠️ For NPT threaded connections only: use thread seal tape (PTFE) or appropriate thread sealant formulated for plastics.
• ⚠️ Ensure proper grounding and bonding per NEC requirements.
• ⚠️ GFCI protection is required by code.
• ⚠️ Locate pump as close to the water source as possible for best performance.
• ⚠️ Discharge can be oriented in 4 positions for flexible plumbing configuration.

🔄 Maintenance Guide

Routine Maintenance:

Warning Signs – Replace Pump If:

• Unusual noise (grinding, screeching, humming without starting)
• Water leaking from shaft seal area
• Motor trips breaker repeatedly
• Reduced water flow despite clean filters
• Motor overheating and cycling on/off
• Excessive vibration

Seal Replacement:

• 📍 Seal Type: PS-200 (5/8″ shaft)
• 📍 Seal Part Number: 92500150
• ⚠️ Replace the complete seal assembly (both ceramic and carbon sides) every time the pump is disassembled
• ⚠️ Always disconnect electrical power before performing any work on the pump

Winterization:

To prevent freeze damage, turn off all electrical power, drain the pump and plumbing thoroughly, and clean out any debris. Cover the pump or store in a dry, well-ventilated area if possible.

🎯 Ideal Applications

❓ Frequently Asked Questions

Q: What horsepower is this pump? A: This is a 1.5 HP (continuous rated) dual-speed spa pump.

Q: Will this pump fit my hot tub? A: This pump uses a 48Y (thru-bolt) frame with 2-inch MBT connections on both suction and discharge. The outside thread-to-thread diameter measures approximately 3 inches. Check your existing pump’s frame type, port sizes, and mounting dimensions for compatibility. Contact Parts4Tubs if you need help verifying the fit.

Q: What voltage does this pump require? A: 115V / 60Hz. All electrical installation must be performed by a licensed electrician in accordance with the NEC and local codes. Do not connect to 230V supply, as this will damage the motor.

Q: Is this a single or dual speed pump? A: This is a 2-speed (dual-speed) pump. High speed powers the jets for hydrotherapy, and low speed provides energy-efficient filtration and circulation.

Q: What size are the ports? A: Both suction and discharge are 2″ Male Buttress Thread (MBT). Suction is center-mounted, and discharge is side-mounted. The outside diameter of the threaded connection measures approximately 3 inches.

Q: What seal does this pump use? A: PS-200 shaft seal (5/8″ shaft), Gecko part number 92500150. This is a standard replacement seal available from Parts4Tubs.

Q: Can the discharge be rotated? A: Yes, the discharge can be oriented in 4 positions to accommodate various plumbing configurations.

Q: What warranty is included? A: The Aqua-Flo XP2 series carries a manufacturer’s limited warranty. The first two years provide full repair or replacement at Gecko’s option. Years three through five offer prorated replacement pricing. Pump seals are warranted for 30 days. 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, or humming without starting), water leaking from the shaft seal, reduced water flow, the motor tripping the circuit breaker, or the motor overheating and cycling on and off.

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 electrical installations.

Q: Can I use thread sealant tape on the union connections? A: No. For the compression fittings (unions) included with this pump, do NOT use any thread seal tape, Teflon compound, or sealants. Hand tighten only. Thread sealant should only be used on NPT (National Pipe Thread) connections.

📥 Downloads & Resources

📄 Flo-Master XP2 Owner’s Manual (PDF) – Installation, operation, maintenance, and parts diagram

🔩 Replacement Parts Reference

The following replacement parts are available for the FMXP2 48-frame pump series. All part numbers are from the manufacturer’s official parts list.

🏆 Why Choose the Gecko Aqua-Flo FMXP2

• ✅ Superior Flow Performance – Flow rates in excess of 140 GPM from a compact 48-frame pump, outperforming all other 48-frame pumps on the market
• ✅ Trusted Manufacturer – Built by Gecko Alliance, a world leader in spa control systems and pump technology
• ✅ Whisper-Quiet Operation – High volumetric volute design minimizes noise for a peaceful spa experience
• ✅ Dual-Speed Efficiency – High speed for powerful jets, low speed for energy-saving filtration
• ✅ Versatile Installation – 4-position discharge orientation, multiple drain plug locations, and included unions for easy setup
• ✅ Thermally Protected – Built-in thermal protection extends motor life and prevents overheating damage
• ✅ Safety Certified – cULus/cURus listed for peace of mind

🤝 Why Buy From Parts4Tubs

• ✅ US-based support for American customers (Boca Raton, FL)
• ✅ Fast shipping across the United States
• ✅ Expert advice from spa and hot tub specialists
• ✅ Competitive pricing in USD
• ✅ Full warranty support
• ✅ Hassle-free returns
• ✅ Replacement seals, wet ends, and parts available
• ✅ Dedicated customer service team – buy from a person, not just the internet!

✨ Summary

The Gecko Aqua-Flo Flo-Master FMXP2 (06115000-1040) is a 1.5 HP, 2-speed, 115V/60Hz jet pump featuring a compact 48Y frame, 2-inch MBT suction and discharge, and flow rates exceeding 140 GPM. Its whisper-quiet, high volumetric volute design, thermally protected motor, and cULus/cURus certification make it the go-to choice for large, heavily jetted hot tubs. Unions included for easy installation. Order yours today 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: 597 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: 575 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: 83 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: 356 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: 153 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.