🔧 Gecko Aqua-Flo Flo-Master FMCP Spa Pump – 1.5 HP 2-Speed 115V (02615000-1010)

High-performance center discharge pump with flow rates that outperform the competition

💧 Product Overview

The Gecko Aqua-Flo Flo-Master FMCP (Model: 02615000-1010) is a high-performance 1.5 HP dual-speed jet pump engineered for portable spas, hot tubs, and whirlpool baths. Built on Gecko Alliance’s proven Flo-Master CP platform, this pump features a unique high-performance impeller design that delivers flow rates exceeding all tested competition in its class.

Rated at 1.5 Operational Horsepower (2.0 Total Horsepower), this 115V pump operates on a compact 48-frame configuration with center discharge, making it ideal for entry-level to mid-range spas requiring greater output. The dual-speed motor provides powerful high-speed jet action for hydrotherapy and energy-efficient low-speed operation for filtration cycles. Each pump ships complete with two quick-release compression fittings (unions) for simplified installation and maintenance.

Manufactured by Gecko Alliance, a leading North American spa equipment manufacturer headquartered in Quebec, Canada, the FMCP series is renowned for its precision engineering, reinforced plastic construction, and long-service reliability.

⭐ Key Features

✅ High-Performance Impeller – Unique impeller design provides flow rates that exceed all tested competition, allowing lower HP to match higher HP competitors

✅ Dual-Speed Motor – 2-speed operation delivers powerful jet action on high speed (14.4A) and energy-efficient filtration on low speed (5.5A)

✅ 1.5 Operational HP / 2.0 Total HP – Dual-rated horsepower system provides clear power specification for accurate pump matching

✅ Compact 48-Frame Design – Space-saving 48Y frame fits standard spa equipment bays without modification

✅ Center Discharge Configuration – Top-mounted center discharge for versatile plumbing routing

✅ 1-1/2″ MBT Connections – Male Buttress Thread suction and discharge ports compatible with standard spa plumbing

✅ Quick-Release Compression Fittings – Two union fittings included for tool-free installation and easy maintenance access

✅ Built-In Thermal Overload Protection – Motor protection prevents damage from overheating conditions

✅ Reinforced Engineered Plastic Construction – Durable volute and wet end built for continuous spa operation

✅ 115V / 60Hz Operation – Standard US residential voltage for broad compatibility with spa control systems

✅ California Title 20 Compliant – Meets California energy efficiency standards

✅ Universeal Shaft Seal Technology – Gecko’s proprietary seal design with fewer parts and superior leak resistance

⚙️ Technical Specifications

Specification	Value
Model Number	02615000-1010
Manufacturer	Gecko Alliance (Aqua-Flo)
Series	FMCP (Flo-Master CP)
Pump Type	Jet Pump
Operational Horsepower (OHP)	1.5 HP
Total Horsepower (THP)	2.0 HP
Speed Settings	2-Speed
Voltage	115V
Frequency	60 Hz
Amperage (High Speed)	14.4A
Amperage (Low Speed)	5.5A
Frame Type	48Y (48-Frame)
Discharge Location	Center (Top)
Discharge Size	1-1/2″ MBT
Suction Size	1-1/2″ MBT
Connection Thread OD	Approx. 2-3/8″ (standard 1.5″ FBT)
Seal Type	#200 (Universeal)
Cord	None – Hardwire Installation
Unions Included	Yes – 2x Compression Fittings
Thermal Protection	Yes – Built-In Overload Protection

⚠️ Note on Horsepower Rating: In 2012, Gecko Alliance updated its horsepower rating methodology. This pump is rated at 1.5 Operational Horsepower (OHP), which represents the actual continuous running power. The 2.0 Total Horsepower (THP) rating represents peak/startup power. When replacing an older Aqua-Flo pump, match the Operational HP rating for equivalent performance.

⚡ Electrical Requirements

Electrical Spec	Requirement
Supply Voltage	115V
Frequency	60 Hz
Phase	Single Phase
Full Load Amps (High Speed)	14.4A
Full Load Amps (Low Speed)	5.5A
Cord Included	No – Hardwire Installation Required

⚠️ IMPORTANT ELECTRICAL SAFETY INFORMATION:

• 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 no smaller than No. 8 AWG solid copper conductor per NEC. The connection should be 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 of the inside walls of the spa or hot tub.
• For electrical connections, refer to the wiring diagram on the motor rating plate.
• Before performing any work on the pump, ensure the source of electrical power is OFF at the main junction box.

🔗 Compatibility Guide

This Pump:

📍 Frame: 48Y (48-Frame) 📍 Wet End: FMCP Series 📍 Discharge: 1-1/2″ MBT – Center (Top) 📍 Suction: 1-1/2″ MBT 📍 Union Thread OD: Approx. 2-3/8″ (standard 1.5″ Female Buttress Thread)

Union Collar Size Reference:

Union Size	Collar Size (Tip to Tip)	Thread OD	O-Ring Size
1.5″ FBT	2.5″ / 64mm	2-1/2″ (64mm)	2-5/16″ OD (59mm)
2″ FBT	3.1″ / 78mm	3-1/16″ (78mm)	2-15/16″ OD (75mm)

⚠️ Note: The union “size” (1.5″, 2″) is nominal and does not correspond to any actual measurement. The collar size is measured from thread tip to thread tip on the pump outlet. Most hot tub pumps use Female Buttress Thread (FBT).

FMCP vs FMHP: The FMCP has a center (top) discharge. The FMHP has a side (offset) discharge. Both share the same motor and impeller designs but use different volutes. Ensure you match the correct discharge orientation for your installation.

Replaces These Aqua-Flo Pump Models:

02515000-1010, 02515000-2010, 02517954-1000, 02517954-1300, 02520000-1010, 02615000-1000, 02615000-1010, 02615000-1310, 02615001-2010, 02615001-2310, 02615302-2010, 02615408-2000, 02615500-2000, 02615500-2010, 02615500-2310, 02615509-2000, 02615509-2010, 02615509-2100, 02615509-2300, 02615509-5000, 02615510-2000, 02615510-2010, 02615520-1010, 02615851-1010, 03515107-2080, 03517000-1300, 03517292-1300, 03517954-1300, 03615000-1010, 03615001-2000, 03615001-2300, 03615001-5300, 03615141-1000, 03615487-2010, 03615487-2110, 03615487-2310, 03615500-2010, 03615510-2010, 03615520-1010, 03615582-1000, 03615607-1000, 03615607-1300, 03615611-1010, 03615726-2000, 03615726-2100, 03615865-1000, 03615908-1000, 03617891-1300, 03617891-1310, 03671891-1300, 03710500-2010

Alternate Part Numbers for This Pump:

02615000-1010, 02615000, 1-00-0045, AF026150001010, 026150001010, 34-402-2094, 344022094

🛠️ Installation Requirements

Mounting:

Requirement	Specification
Mounting Position	Horizontal
Installation Type	Below water level (flooded suction)
Base	Solid, level, vibration-dampening surface
Access	Adequate clearance for inspection and maintenance

Plumbing:

Connection	Size
Suction	1-1/2″ MBT
Discharge	1-1/2″ MBT (Center)
Union Type	Quick-release compression fittings (2 included)

Installation Notes:

⚠️ This pump was designed for below water level (flooded suction) applications. Make sure the pump is installed at a level that will allow the pump casing (volute) to be completely filled with water.

⚠️ Never run pump dry – always ensure the pump casing is filled with water before starting. Allow a reasonable amount of time for priming.

⚠️ Compression fittings must be correctly aligned with pump connections to allow the O-ring to make a proper seal. Hand tighten only – do NOT use a wrench to tighten fittings.

⚠️ Do NOT use thread seal tape (PTFE), Teflon compound, or any sealants on Aqua-Flo compression fittings. Use sealants only on NPT threaded connections.

⚠️ Ensure proper grounding and bonding per NEC requirements. GFCI protection is required by code.

⚠️ Cord not included – this pump requires hardwire installation by a licensed electrician.

⚠️ For best pump performance, locate the system as close to the water source as possible.

🔧 Maintenance Guide

Routine Maintenance:

Task	Frequency	Notes
Check for leaks	Monthly	Around seal area and union connections
Inspect union connections	Monthly	Hand tighten only if needed – no tools
Inspect O-rings	Monthly	Replace if cracked, worn, or damaged
Keep motor clean	Quarterly	Ensure louvered openings are free from debris and obstructions
Check mounting security	Quarterly	Tighten mounting bolts if loose

Warning Signs – Service or Replace Pump If:

• Unusual noise (grinding, screeching, humming without starting)
• Water leaking from seal area
• Motor trips breaker repeatedly
• Reduced water flow or pressure
• Motor overheating and cycling on/off
• Pump will not prime

Troubleshooting Quick Reference:

Problem	Possible Causes
Motor will not start	Check circuit breaker; check for incorrect or loose wire connections; verify correct power supply
Motor overheating/cycling	Check for loose wire connections; check for low voltage supply (often caused by undersized wire); ensure motor vents are unclogged
Motor hums but won’t start	Check for low voltage; make sure motor shaft turns free; check for jammed impeller
Pump won’t prime	Ensure pump is at proper level; open air control valves; check suction/discharge lines are clear and valves are open; check for air leaks in suction line
Low water flow	Check for clogged plumbing; check for worn/damaged impeller; check for low voltage; check if filter needs cleaning
Water leaks	Check seal for contamination or damage; check compression fittings are properly aligned and hand-tightened; check O-rings are seated and undamaged

Winterization:

To prevent freeze damage, disconnect all electrical power. Drain the pump thoroughly and clean out any debris. Protect the pump and motor from the elements by covering or, if possible, storing in a dry, well-ventilated room.

Seal Replacement:

📍 Seal Type: #200 (Universeal) 📍 Seal Part Number: 92500150 ⚠️ It is advisable to replace the complete seal assembly (both the ceramic and carbon sides) every time the pump is disassembled.

🎯 Ideal Applications

Application	Suitability	Notes
♨️ Hot tub jet pump	Yes	Primary jet pump for entry-level to mid-range spas
♨️ Spa booster jet pump	Yes	Ideal as a secondary booster pump for additional jets
♨️ Multi-jetted spas	Yes	High-performance impeller designed for spas with multiple jets
🛁 Whirlpool bath	Yes	Suitable for whirlpool and jetted bath applications
♨️ Portable spas	Yes	Compact 48-frame fits standard portable spa equipment bays

🔩 Replacement Parts (FMCP Series)

All part numbers sourced from the official Gecko Aqua-Flo Flo-Master HP & CP Techbook.

Ref.	Part Number	Description
1	(See motor label)	Motor
2	92770603	Volute, FMCP Series
3	92500150	Seal Replacement, #200
4	91693651	Impeller, 1.5 HP
5	92200270	O-ring, Volute, #251
6	92830062	Wear Ring
7	91231402	Cover, Suction, FMCP Series, Std Drain
7A	56910040	Replacement Kit Cover, Complete
8	99730050	Screw, #8-32 x 5/8″
9	92200120	O-ring, Pipe Plug, #011
10	92290015	Pipe Plug, 1/4″ NPSM
11	92200140	O-ring, #226
12	91431050	Fitting, Tail Piece, 1-1/2″
13	91431000	Fitting, Union Nut, 1-1/2″
14	52201000	Fitting, Compression, Complete, 1-1/2″
Q	91040820-000	Assembly, Wet End Complete, 1.5 HP

⚠️ Note: FMC, FMH, and FMV replacement parts (including gray impellers) are no longer available. Do not attempt to replace plastic parts with current items. Replace with corresponding wet end in the correct horsepower.

Other FMCP Wet End Assemblies (for reference):

Part Number	Description
91040830-000	Wet End Complete, 0.50 HP
91040800-000	Wet End Complete, 0.75 HP
91040810-000	Wet End Complete, 1.0 HP
91040820-000	Wet End Complete, 1.5 HP
91040840-000	Wet End Complete, 2.0 HP

❓ Frequently Asked Questions

Q: What horsepower is this pump? A: This pump is rated at 1.5 Operational Horsepower (OHP) and 2.0 Total Horsepower (THP). The Operational HP represents the actual continuous running power of the motor. When replacing an older pump, match the Operational HP rating for equivalent performance.

Q: Will this fit my hot tub? A: This pump has a 48-frame (48Y) motor with 1-1/2″ Male Buttress Thread (MBT) suction and discharge ports, and a center (top) discharge configuration. Check your existing pump’s frame size, port sizes, and discharge position for compatibility. If your current pump has a side discharge, you may need the FMHP model instead.

Q: What voltage does this pump require? A: This pump requires 115V / 60Hz. All electrical installation must be performed by a licensed electrician with GFCI protection. A 230V version (02615005-1010) is also available if your spa requires it.

Q: Is this a single or dual speed pump? A: This is a dual-speed pump. High speed draws 14.4 amps and provides full jet power. Low speed draws 5.5 amps and is used for energy-efficient filtration cycles.

Q: What size are the ports? A: Both suction and discharge ports are 1-1/2″ Male Buttress Thread (MBT). The union thread outside diameter measures approximately 2-3/8″. The discharge is center-mounted (top of pump).

Q: Does this pump come with a power cord? A: No, this pump does not include a power cord. It requires hardwire installation by a licensed electrician. If your spa control system uses AMP connectors, a separate AMP cord/plug will be needed.

Q: What unions/fittings are included? A: Two 1-1/2″ quick-release compression fittings (unions) are included with the pump. These allow for tool-free installation and easy maintenance access. Hand tighten only – do not use any tools or thread sealant on compression fittings.

Q: What is the difference between the FMCP and FMHP? A: The FMCP has a center (top) discharge, while the FMHP has a side (offset) discharge. Both use the same motor and impeller designs but have different volutes. Choose the model that matches your existing pump’s discharge orientation.

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: What seal does this pump use? A: This pump uses a #200 seal (Part# 92500150). It is recommended to replace the complete seal assembly (both ceramic and carbon sides) any time the pump is disassembled.

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

📥 Downloads & Resources

📄 Flo-Master HP & CP Techbook (Installation & Parts Guide) – Complete installation instructions, troubleshooting, assembly/disassembly procedures, and replacement parts diagrams

🏆 Why Choose the Gecko Aqua-Flo FMCP 1.5 HP

✅ Superior Flow Performance – Unique high-performance impeller provides flow rates that exceed all tested competition in its class

✅ Cost-Effective Power – Outstanding flow rates allow a lower HP pump to match the performance of higher HP competitors, reducing operating costs

✅ Proven Reliability – Precision-engineered by Gecko Alliance with reinforced plastic construction, stainless steel volute fasteners, and built-in thermal protection

✅ Versatile Dual-Speed Operation – Full jet power on high speed with energy-efficient filtration on low speed for lower electricity bills

✅ Simple Installation – Included quick-release compression fittings, compact 48-frame design, and standard 1-1/2″ MBT connections for straightforward replacement

✅ Comprehensive Replacement Parts – Full range of manufacturer-backed replacement seals, impellers, wet ends, and components readily available

🤝 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

✅ Hassle-free returns

✅ Replacement seals, wet ends, and parts available

✅ Dedicated customer service team

✨ Summary

The Gecko Aqua-Flo Flo-Master FMCP (02615000-1010) is a 1.5 HP dual-speed jet pump rated at 115V/60Hz with 14.4/5.5A draw. Featuring a 48-frame design with center discharge and 1-1/2″ MBT connections, this pump’s high-performance impeller delivers industry-leading flow rates in a compact package. Complete with two compression fittings and backed by Gecko Alliance’s proven engineering, it’s an ideal replacement for dozens of legacy pump models. Order 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.