💧 Gecko Aqua-Flo Flo-Master FMCP Spa Pump – 2.0 HP 2-Speed 230V (02620000-1010)

Precision-engineered center discharge pump delivering exceptional jet power for your spa

♨️ Product Overview

The Gecko Aqua-Flo Flo-Master FMCP (Model: 02620000-1010) is a 2.0 HP dual-speed jet pump manufactured by Gecko Alliance, a global leader in spa and hot tub equipment. Built around a unique, high-performance impeller that delivers flow rates exceeding all tested competition, this center discharge pump is engineered for portable spas, whirlpools, and hot tubs requiring powerful hydrotherapy jets and efficient water circulation.

The compact 48-frame design makes it a space-saving solution for equipment bays of all sizes, while the dual-speed motor allows full-power jet operation on high speed and energy-efficient filtration on low speed. Each pump ships complete with two 1-1/2″ quick-release compression fittings for easy installation and maintenance. The reinforced engineered plastic construction and compact, unitized single spring elastomer bellows mechanical seal offer maximum durability and long-lasting, drip-proof performance.

⭐ Key Features

• ✅ 2.0 HP Dual-Speed Motor – Full jet power on high speed, energy-efficient circulation on low speed
• ✅ Center Discharge Design – Versatile FMCP configuration for universal installation compatibility
• ✅ 48Y Frame – Compact footprint ideal for tight spa equipment bays
• ✅ 230V / 60Hz Operation – US-standard hardwire electrical connection
• ✅ High-Performance Impeller – Unique design delivers flow rates up to 150 GPM, exceeding all tested competition
• ✅ Quick-Release Compression Fittings – Two 1-1/2″ MBT unions included for easy installation and maintenance
• ✅ Elastomer Bellows Mechanical Seal – Compact, unitized, single spring design for maximum durability and drip-proof operation
• ✅ Reinforced Plastic Construction – Engineered for long-lasting reliability in demanding spa environments
• ✅ Stainless Steel Volute Fasteners – Corrosion-resistant hardware for lasting assembly integrity
• ✅ Built-In Overload Protection – Motor thermal protection prevents damage from overheating
• ✅ Rotatable Wet End – Can be rotated to accommodate different plumbing configurations
• ✅ 2-Year Manufacturer Warranty – OEM Gecko Alliance warranty coverage

🔩 Technical Specifications

⚠️ Note: OEM pump manufacturers may change motors and styles without notice. Pumps may ship with or without a run capacitor. Amperage ratings may vary slightly between motor revisions — some sources list 8.5/2.8A depending on the specific motor batch installed.

⚡ Electrical Requirements

⚠️ 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 (8.4mm²) solid copper conductor per the National Electrical Code.

🔗 Compatibility Guide

Frame Dimensions:

This Pump:

📍 Frame: 48Y 📍 Wet End: 1-1/2″ MBT (center discharge) 📍 Discharge: 1-1/2″ MBT center discharge (approximately 2-3/8″ OD) 📍 Suction: 1-1/2″ MBT (approximately 2-3/8″ OD)

Cross-Reference Part Numbers (Verified):

This pump is also known by the following part numbers:

• 03621000-2 (3.0 / 4.0 SPL “Special” HP Rating)
• 03620459-2
• 02620000-2
• 02620000
• 03610000
• 03620205-1 (3.6 SPL “Special” HP Rating)
• 03620521-1 (3.6 SPL “Special” HP Rating)
• 03521000-2 (3.0 SPL “Special” HP Rating)
• 1-00-0043
• 182-912
• 5121-420
• 5121-425
• 7-182-912-03
• T55MWCFR-1288

💡 Tip: The FMCP series features a center discharge, while the FMHP series features an offset (side) discharge. Verify your existing pump’s discharge orientation before ordering. The wet end can be rotated to accommodate different plumbing configurations.

🛠️ Installation Requirements

Mounting:

Plumbing:

Installation Notes:

⚠️ Pump must be installed below water level (flooded suction) — the pump casing (volute) must be completely filled with water before operation. ⚠️ Never run pump dry — causes seal damage and potential motor failure. ⚠️ Hand tighten compression fittings only — do not use a wrench. Ensure fittings are correctly aligned to allow the o-ring to make a proper seal. ⚠️ Ensure proper grounding and bonding per NEC requirements — No. 8 AWG solid copper minimum. ⚠️ GFCI protection is required by code for all hot tub and spa installations. ⚠️ Locate the system as close to the water source as possible for best performance.

⚙️ Maintenance Guide

Routine Maintenance:

Warning Signs – Replace Pump If:

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

Seal Replacement:

📍 Seal Type: PS-200 (#200) 📍 Seal Part Number: 92500150 📍 Impeller Part Number (2.0 HP): 91693700 📍 Complete Wet End (2.0 HP): 91040840-000 📍 Volute: 92770603 ⚠️ It is advisable to replace the complete seal assembly (both ceramic and carbon sides) every time the pump is disassembled. Use alcohol wipes or isopropyl alcohol with clean lint-free cloth to clean seal surfaces if reusing.

🌡️ Winterization

To prevent damage during freezing conditions, 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, store in a dry, well-ventilated room.

🎯 Ideal Applications

❓ Frequently Asked Questions

Q: What horsepower is this pump? A: This pump is rated at 2.0 HP operational horsepower. Some cross-reference listings show 3.0 HP or 3.6 SPL (“Special” HP rating), which reflects different horsepower measurement methods used by certain manufacturers and distributors.

Q: Will this fit my hot tub? A: This pump has a 48Y frame with 1-1/2″ MBT center discharge connections measuring approximately 2-3/8″ outside diameter at the threads. Check your existing pump’s frame type, port size, and discharge orientation (center vs. side) for compatibility. The FMCP has center discharge — if your pump has side/offset discharge, you may need the FMHP model instead.

Q: What voltage does this pump require? A: 230V / 60Hz. This is a hardwire connection — no cord is included. All electrical installation must be performed by a licensed electrician. Verify your existing pump’s voltage before ordering. Using the wrong voltage will damage the motor.

Q: Does this come with a cord? A: No. This pump requires hardwire installation or a separately purchased AMP cord. Use your existing cord or purchase a compatible 2-speed AMP cord.

Q: Does this pump include unions? A: Yes. Two 1-1/2″ quick-release compression fittings are included for easy installation.

Q: Is this a single or dual speed pump? A: This is a 2-speed pump. High speed powers the jets; low speed provides energy-efficient filtration and circulation. It can also be wired as a single-speed pump if needed.

Q: What size are the ports? A: Both suction and discharge are 1-1/2″ MBT (Male Buttress Thread) with an outside diameter of approximately 2-3/8″ at the threads.

Q: What is the difference between the FMCP and FMHP? A: The FMCP has a center discharge (outlet on top, centered), while the FMHP has a side/offset discharge. Both use the same frame, motors, and impellers. Choose based on your spa’s plumbing layout.

Q: Can I rotate the wet end? A: Yes. The wet end can be rotated to accommodate different plumbing configurations in your equipment bay.

Q: What warranty is included? A: This is a brand new OEM Gecko Alliance pump with a 2-year manufacturer warranty. Contact Parts4Tubs for full warranty terms.

Q: How do I know if my pump needs replacing? A: Signs include unusual noise (grinding, screeching), leaking seals, reduced water flow, or the motor tripping the circuit breaker repeatedly. If the motor hums but won’t start, check for a jammed impeller or obstruction.

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

🏆 Why Choose the Gecko Aqua-Flo FMCP 2.0 HP

• ✅ Exceptional Flow Performance – Unique high-performance impeller delivers up to 150 GPM, exceeding all tested competition
• ✅ Proven OEM Quality – Brand new genuine Gecko Alliance pump, not an aftermarket or assembled unit
• ✅ Dual-Speed Efficiency – Full jet power when you want it, energy-saving circulation when you don’t
• ✅ Drip-Proof Seal Design – Cool running elastomer bellows mechanical seal virtually eliminates seal burnout
• ✅ Easy Installation – Quick-release compression fittings and rotatable wet end simplify plumbing connections
• ✅ 2-Year Manufacturer Warranty – Backed by Gecko Alliance, a trusted name in spa equipment worldwide

🤝 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 02620000-1010 is a 2.0 HP dual-speed, 230V center discharge jet pump built on Gecko Alliance’s industry-leading impeller technology delivering up to 150 GPM. With its compact 48Y frame, included unions, rotatable wet end, drip-proof mechanical seal, and 2-year manufacturer warranty, this pump is the reliable choice for powering your spa’s hydrotherapy jets. Order 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: 575 Min: 1 Step: 1 Add to cart
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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.