⚡ Gecko Aqua-Flo Flo-Master FMXP2 Spa Pump – 1.5 HP 2-Speed 230V (06115517-2040)

High-performance jet pump engineered for today’s large, heavily jetted spas

💧 Product Overview

The Gecko Aqua-Flo Flo-Master FMXP2 (model 06115517-2040) is a 1.5 HP dual-speed jet pump designed for portable spas, hot tubs, and whirlpool baths that demand powerful hydrotherapy performance. Operating at 230V/60Hz, this 48-frame pump delivers exceptional flow rates while keeping amperage draw low, making it one of the most efficient pumps in its class.

As Aqua-Flo by Gecko’s original high-performance spa pump offering, the XP2 series bridges the performance gap between traditional 48-frame spa pumps and larger 56-frame pool pumps. The result is a compact pump that easily outperforms other 48-frame pumps on the market while fitting within the same space envelope. With a fine-tuned impeller system, 2-inch suction and discharge ports, center suction and side discharge configuration, and included compression union fittings, this pump is built for straightforward installation and years of dependable service. Backed by a 2-year manufacturer warranty and California Title 20 compliance, the FMXP2 is a proven choice for spa owners and professionals alike.

⭐ Key Features

✅ 1.5 HP Dual-Speed Motor – High speed for powerful jet therapy, low speed for quiet filtration and heating cycles

✅ 230V/60Hz Operation – Lower amperage draw compared to 115V models, ideal for dedicated spa circuits

✅ 48-Frame Thru-Bolt Design – Industry-standard mounting for broad compatibility with existing spa systems

✅ 2-Inch Ports (MBT) – Both suction and discharge use 2″ Male Buttress Thread connections for optimal flow

✅ Side Discharge / Center Suction – Versatile plumbing configuration with rotatable wet end (12, 3, and 9 o’clock positions)

✅ Flow Rate Up to 125 GPM – Delivers strong water flow for demanding multi-jet spa systems

✅ Thermally Protected Motor – Built-in thermal overload protection extends motor life and prevents damage from overheating

✅ Multiple Drain Locations – Drain plugs at 4, 6, and 9 o’clock positions for flexible installation and winterization

✅ Unions Included – Compression union fittings included for easy installation and future maintenance access

✅ California Title 20 Compliant – Meets energy efficiency requirements for the state of California

✅ 2-Year Manufacturer Warranty – Full manufacturer warranty coverage for peace of mind

⚙️ Technical Specifications

Specification	Value
Model Number	06115517-2040
Manufacturer	Gecko Alliance (Aqua-Flo)
Pump Series	Flo-Master FMXP2 / XP2
Pump Type	Jet Pump (Booster)
Motor Power (Operational HP)	1.5 HP
Motor Power (Total HP / SPL)	2.0 HP
Speed Settings	2-Speed (Dual Speed)
Voltage	230V
Frequency	60 Hz
Phase	Single Phase
Flow Rate (Max)	Up to 125 GPM
Frame Type	48 Frame Thru-Bolt (48Y)
Suction Port Size	2″ MBT (Male Buttress Thread)
Suction Style	Center
Suction Port OD (Physical)	3-1/16″
Discharge Port Size	2″ MBT (Male Buttress Thread)
Discharge Style	Side
Discharge Port OD (Physical)	3-1/16″
Wet End	2″ (48 Frame)
Volute Fastening	8 Screws
Drain Plug Locations	4, 6, and 9 o’clock
Included Fittings	Compression Unions (2″ x 2″)
Cord	Not included (sold separately)
Thermal Protection	Yes
California Title 20	Compliant
Warranty	2 Years

⚡ Electrical Requirements

Electrical Spec	Requirement
Supply Voltage	230V
Frequency	60 Hz
Phase	Single Phase
High Speed Amperage	See note below
Low Speed Amperage	See note below

⚠️ Important Amperage Note: This pump model has been produced with different motor revisions over the years. The Parts4Tubs listing specifies 6.8A (high speed) / 2.5A (low speed), while other authorized distributors list 7.7A (high speed) / 2.2A (low speed). The variation is due to different Emerson motor revisions (T55CXBLH-960 and T55CXBLH-961) used across production runs. Always verify the amperage rating on the motor nameplate of the pump you receive before sizing your circuit breaker and wiring.

⚠️ Electrical Safety Requirements:

• 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 as mandated by the NEC.
• A dedicated circuit is required — do not share with other appliances.
• The motor must be bonded with a No. 8 AWG solid copper conductor per NEC requirements.
• Verify correct voltage before connecting — using the wrong voltage will damage the motor.

🔄 Compatibility Guide

Frame & Mounting:

Detail	Specification
Frame Type	48 Frame Thru-Bolt
Mounting	Standard 48-frame bolt pattern
Wet End Position	Rotatable to 12:00, 3:00, and 9:00 o’clock

Port Connections:

📍 Frame: 48 Frame Thru-Bolt 📍 Wet End: 2 inch 📍 Discharge: 2 inch MBT — Side 📍 Suction: 2 inch MBT — Center 📍 Physical OD of threaded connections: 3-1/16 inches

Replacement For (Verified Part Numbers):

This pump replaces a wide range of legacy Aqua-Flo XP and XP2 models including: 05015001-2040, 05015005-1000, 05015081-2300, 05015081-2340, 05015558-1340, 05015684-2300, 05015959-1340, 05015964-1301, 05015964-1340, 05115001-2300, 05115001-2340, 05115003-2340, 05115006-2300, 05115006-2340, 05115459-2040, 05115459-2300, 05115761-2000, 05115761-2040, 05115792-2370, 05115894-2300, 05215001-7340, 05515000-2300, 05515000-2340, 05515558-2340, 05515661-1300, 05515684-2340, 05515880-1300, 05615001-2300, 05615001-2340, 05615002-2340, 05615006-2340, 05615459-2300, 05618000-2340, 05818000-7340, 1-00-0131, 06115005-1040, 06115474-2040, 06115485-2040, and others.

Additional cross-reference numbers: 301630, 5121-315, 625239, 974001, AQF-101-9964, DJAYFB-0001, T55CXBLH-961.

⚠️ Always verify your existing pump’s frame size, voltage, horsepower, and port configuration 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 motor vents are free from debris and obstructions
Access	Allow adequate clearance around pump for inspection and maintenance

Plumbing:

Connection	Size
Suction	2 inch MBT (Center)
Discharge	2 inch MBT (Side)
Union Type	Compression fittings (included)
Wet End Rotation	Can be rotated to 12:00, 3:00, or 9:00 position

Installation Notes:

⚠️ Pump must be installed below water level (flooded suction) — the pump casing must completely fill with water before operation.

⚠️ Never run the pump dry — running without water causes immediate seal damage.

⚠️ Hand tighten compression fittings only — do not use a wrench. Ensure O-rings are properly seated and not damaged.

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

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

⚠️ A power cord is not included with this pump. Order a suitable AMP cord separately (e.g., a 2-speed AMP cord for connection to Gecko or Balboa control systems).

🔩 Maintenance Guide

Routine Maintenance:

Task	Frequency	Notes
Check for leaks	Monthly	Inspect around seal area and union connections
Inspect unions & O-rings	Monthly	Ensure properly seated; hand tighten only if needed
Clean trap basket (if equipped)	As needed	Remove debris; do not strike basket when cleaning
Check motor vents	Quarterly	Keep louvered openings free from debris and obstructions
Check mounting bolts	Quarterly	Tighten if loose
Inspect amperage draw	Annually	Should match nameplate rating

Warning Signs — Replace Pump If:

• Unusual noise (grinding, screeching, or humming without starting)
• Water leaking from the shaft seal area
• Motor trips the circuit breaker repeatedly
• Reduced water flow despite clear plumbing
• Motor overheating and cycling on and off

Winterization:

Turn off all electrical power. Drain the pump and plumbing lines thoroughly. Remove any debris. Protect the pump and motor from the elements by covering or storing in a dry, well-ventilated area.

Seal Replacement:

📍 Seal Type: #200 (Viton — high resistance to chemical and heat damage) 📍 Seal Part Number: 92500150 (Aqua-Flo) / BSP-200

⚠️ Replace the complete seal assembly (both ceramic and carbon sides) every time the pump is disassembled. It is advisable to replace the seal at the first sign of leakage.

🔧 Replacement Parts

Ref.	Part Number	Description
1	Motor (48 Frame)	AGH15FL2CS (Emerson)
2	92770705	Volute, XP2 Series, 48 Frame
3	92500150	Seal, Replacement, #200, XP2
4	91694150	Impeller, XP2 Series, 1.5 HP
5	92830070	Wear Ring, Flanged, XP2 Series
6	92200300	O-ring, Volute XP2 Series, #164
7	91231606	Cover, Suction, XP2 Series, 2″, Standard Drain
8	92200060	O-ring, Drain Plug, #111, XP2
9	92290070	Plug, Drain, 1/4-18 NPSM, Wing, XP2 Series
10	99730050	Screw, 8-32 x 5/8″ Long, XP2
11	92200210	O-ring, #230
12	91431200	Fitting, Tailpiece, 2″
13	91431150	Fitting, Union Nut, 2″
14	52202000	Fitting, Compression Complete, 2″ x 2″
*	91041815-000	Complete Wet End Assembly, 1.5 HP, 2″, 48 Frame (Includes items 2-10)

⚠️ Due to a design change in current XP2/XP2e pump wet ends, replacing only the face plate or volute is not recommended. Instead, replace the complete wet end assembly to avoid fitment issues.

⚠️ To order a replacement impeller, always use the part number molded on the impeller being replaced.

🎯 Ideal Applications

Application	Suitability	Notes
♨️ Hot tub / spa jet pump	Yes	Designed specifically for high-performance spa jet systems
♨️ Spa circulation (low speed)	Yes	Low speed provides efficient filtration and heating cycles
🛁 Whirlpool bath	Yes	Suitable for whirlpool bath applications
♨️ Large, multi-jet spas	Yes	Engineered for spas requiring increased flow and pressure
♨️ Swim spa systems	Yes	Suitable for small to mid-size swim spa applications

❓ Frequently Asked Questions

Q: What horsepower is this pump? A: This pump is rated at 1.5 operational HP (also marketed as 2.0 total HP / SPL). It operates with dual speeds for both high-performance jet action and energy-efficient low-speed circulation.

Q: Will this fit my hot tub? A: This pump uses a 48-frame thru-bolt mounting with a 2-inch wet end. The suction and discharge ports are both 2″ MBT with a physical outer diameter of 3-1/16 inches. Check your existing pump’s frame size, wet end dimensions, and port sizes for compatibility. The wet end can be rotated to 12:00, 3:00, or 9:00 o’clock positions for plumbing flexibility.

Q: What voltage does this pump require? A: This pump operates on 230V / 60Hz single phase power. All electrical installation must be performed by a licensed electrician with GFCI protection and a dedicated circuit as required by the NEC.

Q: Does this pump run on 115V or 230V? A: This specific model (06115517-2040) is a 230V pump. A 115V version is available under a different model number (06115000-1040). Using the wrong voltage will damage the motor — always verify your existing pump’s voltage before ordering.

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

Q: What size are the ports? A: Suction: 2 inch MBT (center). Discharge: 2 inch MBT (side). The physical outer diameter of both threaded connections is 3-1/16 inches.

Q: Does this pump come with a power cord? A: No, the pump does not include a power cord. You will need to purchase a compatible AMP cord separately. For 2-speed pump connections to Gecko control systems, use an in.link type cord. For Balboa systems, an AMP cord such as model 21087 is typically used.

Q: What warranty is included? A: This pump comes with a 2-year full manufacturer warranty from Gecko Alliance / Aqua-Flo. Within years 3 through 5, prorated replacement pricing is available. Contact Parts4Tubs for full warranty terms and support.

Q: How do I know if my pump needs replacing? A: Common signs include unusual noise (grinding, screeching), water leaking from the shaft seal, reduced water flow, the motor tripping the circuit breaker repeatedly, 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 installations in the United States.

Q: Can I rotate the wet end to change the discharge direction? A: Yes, the wet end can be rotated to the 12:00, 3:00, or 9:00 o’clock positions to accommodate your plumbing layout.

📥 Downloads & Resources

📄 Flo-Master XP2 Series Owner’s Manual & Parts Diagram (PDF) – Installation instructions, troubleshooting guide, assembly/disassembly instructions, and complete replacement parts list

🏆 Why Choose the Gecko Aqua-Flo Flo-Master FMXP2

✅ High Performance – Outperforms other 48-frame pumps with flow rates up to 125 GPM and superior shut-off head pressure

✅ Proven Reliability – Aqua-Flo by Gecko is a leading manufacturer with decades of spa pump engineering experience

✅ Energy Efficient – 230V dual-speed design delivers lower amperage draw and reduced operating costs with low-speed filtration cycles

✅ Easy Installation – Standard 48-frame mounting, included union fittings, and rotatable wet end simplify replacement

✅ Built to Last – Thermally protected motor, Viton shaft seal, and reinforced construction for years of trouble-free operation

✅ 2-Year Warranty – Full manufacturer warranty with prorated coverage through year 5

🤝 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 — currently $321.03

✅ Full warranty support

✅ Hassle-free returns

✅ Replacement seals, wet ends, impellers, and parts available

✅ Dedicated customer service team

✨ Summary

The Gecko Aqua-Flo Flo-Master FMXP2 (06115517-2040) is a 1.5 HP dual-speed jet pump operating at 230V/60Hz, built on a compact 48-frame platform with 2-inch center suction and side discharge ports. Delivering flow rates up to 125 GPM, thermal motor protection, a rotatable wet end, and including union fittings, this pump is purpose-built for high-performance spa jet systems. Backed by a 2-year warranty and California Title 20 compliance, order yours today from Parts4Tubs for fast US shipping and expert support.

Showing 1 – 5 of 5 results Showing all 5 results Showing the single result No results found

Sort by Price low to high

Sort by Popularity

Sort by Rating

Sort by Price low to high

Sort by Price high to low

Sort by Newness

Sort by Name A - Z

Sort by Name Z - A

Filters Sort results

Reset Apply

	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: 586 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: 516 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: 149 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: 335 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: 167 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.