🔩 Gecko Aqua-Flo Flo-Master XP2 Spa Pump – 2.0 HP 2-Speed 230V (06120500-2040)
Outperforms every other 48-frame pump — 56-frame power in a compact, drop-in package
🔄 Product Overview
The Gecko Aqua-Flo Flo-Master XP2 (Model: 06120500-2040) is a 2.0 HP operational (3.0 HP total) dual-speed jet pump that redefines performance expectations for the 48-frame class. Manufactured by Gecko Alliance, this pump delivers shut-off head pressure exceeding traditional 48-frame spa pumps — rivaling 56-frame performance while fitting in the same compact footprint. Originally designed for today’s large, heavily jetted spas requiring increased water flow, the XP2 has become the go-to upgrade across dozens of major hot tub brands including Jacuzzi, Baja Spas, Diamante, Sonoma, Emerald, and Therma Spas.
With 2-inch suction and discharge ports, a fine-tuned high-performance impeller, high volumetric volute design for whisper-quiet operation, and Class F insulated thermally protected motor, the XP2 delivers exceptional flow rates up to 150 GPM. The pump ships with two 2-inch compression union fittings and three wing nut drain plugs, and the wet end is rotatable from the standard 12 o’clock position to 9 o’clock or 3 o’clock to match your plumbing layout. UL approved (E62386) and backed by Gecko Alliance warranty, this is a proven, high-performance pump trusted by spa manufacturers worldwide.
✨ Key Features
- ✅ 2.0 HP Operational / 3.0 HP Total Dual-Speed Motor – High speed (3450 RPM) for powerful jet action, low speed (1725 RPM) for energy-efficient filtration
- ✅ 56-Frame Performance in a 48-Frame Body – Shut-off head exceeding traditional 48-frame pumps, designed for large, heavily jetted spas
- ✅ 2-Inch Suction and Discharge Ports – Larger ports than FMHP/FMCP series for significantly increased water flow volume
- ✅ High Volumetric Volute Design – Engineered for whisper-quiet operation while maximizing flow
- ✅ Fine-Tuned High-Performance Impeller – Moves water through the system with maximum efficiency, delivering up to 150 GPM
- ✅ Class F Insulation with Thermal Protection – Extends motor life expectancy by preventing overheating damage
- ✅ Sealed Bearing Motor – Enhanced durability and longer bearing life
- ✅ High Ambient Temperature Run Rated – Reliable operation even in hot equipment compartments
- ✅ Rotatable Wet End – Adjustable from 12 o’clock to 9 o’clock or 3 o’clock positions
- ✅ UL Approved (E62386) – Third-party safety certification for peace of mind
- ✅ Included Unions and Drain Plugs – Two 2″ compression fittings with o-rings plus three wing nut drain plugs included
- ✅ Maximum Water Temperature 122°F (50°C) – Rated for standard hot tub operating temperatures
⚙️ Technical Specifications
| Specification | Value |
|---|---|
| Pump Type | Jet Pump (Side Discharge) |
| Model Number | 06120500-2040 |
| Manufacturer | Gecko Alliance (Aqua-Flo) |
| Series | Flo-Master XP2 |
| Motor Power (Operational) | 2.0 HP |
| Motor Power (Total) | 3.0 HP |
| SPL Rating | 3.6 |
| Speed Settings | 2-Speed |
| High Speed RPM | 3450 RPM |
| Low Speed RPM | 1725 RPM |
| Flow Rate (Max) | Up to 150 GPM |
| Voltage | 230V |
| Frequency | 60 Hz |
| Phase | Single Phase |
| Amperage (High Speed) | 8.4 A |
| Amperage (Low Speed) | 3.0 A |
| Frame Type | NEMA 48 (Thru-Bolt) |
| Suction Port | 2″ (Side Discharge configuration) |
| Discharge Port | 2″ (Side Discharge configuration) |
| Port Thread Outside Diameter | 3-1/16″ |
| Discharge Style | Side |
| Wet End Position (Standard) | 12 o’clock (rotatable to 9 or 3 o’clock) |
| Drain Plugs | Three wing nut, 1/4-18 NPSM |
| Seal Type | #200, XP2 Series |
| Seal Part Number | 92500150 |
| Impeller Part Number (2.0 HP) | 91694200 |
| Motor Insulation | Class F, Thermally Protected |
| Bearing | Sealed |
| Max Water Temperature | 122°F (50°C) |
| Construction | High volumetric volute, reinforced engineered plastic |
| Cord | None (Hardwire Installation) |
| Unions Included | Two 2″ compression fittings (union nut + slip tail piece + o-ring) |
| UL Approval | E62386 |
| Warranty | 5 Years (Sliding Scale — see warranty section) |
⚠️ Note: Pump and motor manufacturers reserve the right to change motors or motor styles without notice. Some sources list amperage as 8.5/2.8A depending on the specific motor revision installed — this is within normal manufacturing variation and does not affect compatibility or performance. Always verify amperage on the motor rating plate after installation.
🔌 Electrical Requirements
| Electrical Spec | Requirement |
|---|---|
| Supply Voltage | 230V |
| Frequency | 60 Hz |
| Phase | Single Phase |
| Full Load Amps (High Speed) | 8.4 A |
| Full Load Amps (Low Speed) | 3.0 A |
| Motor Speed (High) | 3450 RPM |
| Motor Speed (Low) | 1725 RPM |
| Connection Type | Hardwire (No Cord Included) |
⚠️ 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 — this unit must be connected only to a supply circuit that is protected by a GFCI. 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
This Pump:
📍 Frame: NEMA 48 (Thru-Bolt) 📍 Suction: 2″ (3-1/16″ thread OD) 📍 Discharge: 2″ Side (3-1/16″ thread OD) 📍 Wet End Position: 12 o’clock standard (rotatable to 9 or 3 o’clock) 📍 Drain Plugs: Three wing nut locations
Known OEM Applications (Verified):
This pump is used as an OEM or direct replacement pump in the following brands:
- Jacuzzi (Part #06120812-1)
- Baja Spas (Part #06620876-1)
- Diamante Spas (Part #06620399-2)
- Sonoma Spas (Part #06620342-2)
- Emerald Spas (Part #06620339-1)
- Therma Spas (Part #06620768-2)
Cross-Reference Part Numbers (Verified):
This pump is also known by or replaces the following part numbers:
- 06120500-2 / 06120000-1040 / 06120070-1 / 06120181-1
- 1-00-0144A (Replaces 1-00-0144)
- 06620768-2 / 06620786-2 / 06620399-2 / 06620342-2
- 06620003-2 / 06620489-2 / 06620345-1 / 06620608-1
- 06620764-1 / 06620776-2 / 06620776-1
- 06620339-1 / 06620509-2 / 06620390-2
- 06620168-1 / 06620000-1 / 06620500-2
- 06620031-1 / 06620485-2 / 06620454-2
- 06620831-1 / 06620514-2 / 06620001-2
- 06520670-2 / 06520002-2
- 05020400-2040 / 05020737-2000
- 05120000-2040 / 05120000-2300 / 05120001-2040 / 05120001-2340
- 05120002-2300 / 05120608-2300 / 05120761-2000 / 05120761-2040
- 05125000-2340
- 630-6117 / T55CXBRF / T55MWCFR-1288
- 301632 / 3421021-1U / 3421221-1U / 434062
- 5121-320 / 625246 / 673539
- AF061205002040 / AQF-10-466 / R63MWDPS-0230
💡 XP2 vs. FMHP/FMCP: The XP2 features 2-inch ports (versus 1-1/2″ on the FMHP/FMCP), delivering significantly more water volume. The XP2 also has higher shut-off head pressure than standard 48-frame pumps. Verify your existing pump’s port size and frame type before ordering — if your current pump has 1-1/2″ ports, you need the FMHP (side discharge) or FMCP (center discharge) instead.
💡 FMXP vs. XP2 Wet End Note: For FMXP models, the volute, volute o-ring, and suction cover are NOT interchangeable with XP2 parts. All other parts (seal, impeller, wear ring, unions, drain plugs) are interchangeable between FMXP and XP2.
🛠️ Installation Requirements
Mounting:
| Requirement | Specification |
|---|---|
| Mounting Position | Below water level (flooded suction) required |
| Base | Solid, level, vibration-dampening surface |
| Ventilation | Adequate clearance — keep louvered motor openings free from debris |
| Access | Sufficient clearance for inspection, maintenance, and wet end rotation |
Plumbing:
| Connection | Size | Style |
|---|---|---|
| Suction | 2″ (3-1/16″ thread OD) | Side |
| Discharge | 2″ (3-1/16″ thread OD) | Side |
| Fittings Included | Two 2″ compression fittings (union nut + slip tail piece + o-ring) | — |
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. ⚠️ For compression fittings: DO NOT USE thread seal tape (PTFE), Teflon compounds, or any sealants on compression fittings. These are only for NPT threaded connections. ⚠️ 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. ⚠️ The wet end can be rotated from standard 12 o’clock to 9 o’clock or 3 o’clock positions to match your plumbing layout.
🔧 Maintenance Guide
Routine Maintenance:
| Task | Frequency | Notes |
|---|---|---|
| Check for leaks | Monthly | Around seal plate, unions, and drain plugs |
| Inspect compression fittings | Monthly | Ensure properly aligned and secure — hand tighten only |
| Inspect trap basket | Frequently | Remove debris; do not strike basket when cleaning |
| Inspect trap cover o-ring | Regularly | Replace as necessary to maintain seal |
| Check motor ventilation | Quarterly | Keep louvered openings free from debris and obstructions |
| Inspect shaft seal | Annually | Check for wear or damage; replace complete assembly if needed |
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 & Parts Replacement (from Manufacturer PDF):
📍 Seal Type: #200, XP2 Series 📍 Seal Part Number: 92500150 📍 Impeller Part Number (2.0 HP): 91694200 📍 Volute, XP2 48 Frame: 92770705 📍 Complete 2.0 HP Wet End (2″, XP2, Standard Drain): 91041610-000 📍 Wear Ring, Flanged, XP2: 92830070 📍 O-ring, Volute XP2 (#164): 92200300 📍 Cover, Suction, XP2, 2″, Standard Drain: 91231606 📍 Complete Cover Kit, 2″, XP2, Standard Drain: 56910090 📍 O-ring, Drain Plug (#111): 92200060 📍 Plug, Drain Wing, 1/4-18 NPSM: 92290070 📍 Fitting, Compression Complete, 2″ x 2″: 52202000 📍 Fitting, Tail Piece, 2″: 91431200 📍 Fitting, Union Nut, 2″: 91431150
⚠️ It is advisable to replace the complete seal assembly (both the ceramic and carbon sides) every time the pump is disassembled. Use alcohol wipes or isopropyl alcohol with a 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 using the wing nut drain plugs 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
| Application | Suitability | Notes |
|---|---|---|
| ♨️ Large, multi-jet hot tub systems | Yes | Primary application — XP2 designed specifically for heavily jetted spas requiring increased flow |
| ♨️ High-performance spa upgrade | Yes | Delivers 56-frame performance in a 48-frame footprint — ideal upgrade from standard FMHP/FMCP |
| ♨️ OEM replacement (2″ port systems) | Yes | Direct drop-in for Jacuzzi, Baja, Diamante, Sonoma, Emerald, Therma and many more |
| ♨️ Spa circulation (low speed) | Yes | Low speed at 1725 RPM provides efficient filtration circulation |
| 🛁 Whirlpool bath | Yes | Suitable for whirlpool applications requiring high-volume water flow |
❓ Frequently Asked Questions
Q: What horsepower is this pump? A: This pump is rated at 2.0 HP operational horsepower and 3.0 HP total horsepower. The 3.6 SPL rating you may see on some listings reflects a different measurement method. When replacing an older Aqua-Flo pump, always match the operational HP rating rather than the total HP.
Q: Will this fit my hot tub? A: This pump has a NEMA 48 frame with 2-inch suction and discharge ports (3-1/16″ thread OD). Verify your existing pump’s frame type, port size, and discharge orientation. If your existing pump has 1-1/2″ ports, this pump will NOT fit — you need the FMHP (side discharge) or FMCP (center discharge) instead.
Q: What is the difference between the XP2 and the FMHP/FMCP? A: The XP2 has larger 2-inch ports (versus 1-1/2″ on the FMHP/FMCP), a higher-volume volute design, and greater shut-off head pressure. The XP2 delivers significantly more water flow, making it ideal for large, heavily jetted spas. It is not a direct replacement for 1-1/2″ port pumps.
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 with GFCI protection. Verify your existing pump’s voltage before ordering.
Q: Does this come with a cord? A: No. This pump requires hardwire installation or a separately purchased AMP cord. You can often reuse your existing pump cord if it is in good condition and properly rated.
Q: Does this pump include unions? A: Yes. Two 2-inch compression fittings (union nut, slip tail piece, and o-ring) are included.
Q: Is this a single or dual speed pump? A: This is a 2-speed pump. High speed (3450 RPM) powers the jets; low speed (1725 RPM) provides energy-efficient filtration and circulation.
Q: What size are the ports? A: Both suction and discharge are 2″ with a thread outside diameter of 3-1/16″. This is significantly larger than the 1-1/2″ ports on the FMHP/FMCP series.
Q: Can I rotate the wet end? A: Yes. The XP2 wet end can be rotated from the standard 12 o’clock position to 9 o’clock or 3 o’clock to accommodate different plumbing orientations.
Q: What warranty is included? A: The Flo-Master XP2 series carries a manufacturer warranty of five years from date of purchase: full replacement within the first two years if defective in material or workmanship, then a sliding scale (60% in year three, 40% in year four, 20% in year five). 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), water leaking from the seal area, reduced water flow, motor humming but not starting (check for jammed impeller), or the motor tripping the circuit breaker repeatedly.
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. This unit must be connected only to a GFCI-protected circuit.
Q: Are FMXP and XP2 parts interchangeable? A: Partially. The seal, impeller, wear ring, unions, and drain plugs are interchangeable between FMXP and XP2 models. However, the volute, volute o-ring, and suction cover are NOT interchangeable between FMXP and XP2 models.
📥 Downloads & Resources
📄 Flo-Master XP2 Series Owner’s Manual (Installation, Troubleshooting & Parts Diagram) – Complete installation guide, assembly instructions, replacement parts list, troubleshooting, and warranty information
🏆 Why Choose the Gecko Aqua-Flo Flo-Master XP2 2.0 HP
- ✅ Unmatched 48-Frame Performance – Outperforms every other 48-frame pump on the market with 56-frame level shut-off head pressure
- ✅ Whisper-Quiet Operation – High volumetric volute design minimizes noise while maximizing flow
- ✅ High-Flow 2-Inch Ports – Significantly more water volume than standard 1-1/2″ pumps for powerful hydrotherapy jets
- ✅ Genuine OEM Quality – Brand new Gecko Alliance pump, UL approved (E62386), trusted by major spa manufacturers worldwide
- ✅ Built for Durability – Class F insulation, sealed bearings, thermal protection, and high ambient temperature run rating
- ✅ Flexible Installation – Rotatable wet end, three drain plug locations, and compression fittings included
- ✅ Comprehensive Warranty – Backed by a 5-year manufacturer warranty (full replacement in first 2 years)
🤝 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, impellers, and parts available
- ✅ Dedicated customer service team
💫 Summary
The Gecko Aqua-Flo Flo-Master XP2 06120500-2040 is a 2.0 HP operational (3.0 HP total) dual-speed, 230V high-performance jet pump that outperforms every other 48-frame pump on the market. With its whisper-quiet high volumetric volute, 2-inch ports, fine-tuned impeller delivering up to 150 GPM, Class F thermally protected sealed bearing motor, rotatable wet end, UL approval (E62386), and direct OEM compatibility with Jacuzzi, Baja, Diamante, Sonoma, Emerald, Therma Spas and many more, this pump is the definitive choice for large, heavily jetted spa systems. Backed by a 5-year Gecko Alliance warranty, order today from Parts4Tubs for fast US shipping and expert support.
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Amp Plug, Pump 1 (2-Speed) 14/4, 72" Long, White |
Hot Tub Pump Collar & Union Size Chart
| 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
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:
-
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.
-
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)
-
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.
-
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.
-
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.
-
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.
-
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.
-
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.
-
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.
-
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.
-
Turn On the Power: Restore power to the hot tub by switching on the circuit breaker or reconnecting the disconnect switch.
-
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.
-
Refill the Hot Tub: Once you've confirmed that the new pump is functioning properly, refill the hot tub with water.
-
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.
-
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:
-
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.
-
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.
-
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.
-
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.
-
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.


















