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2 HP Gecko Aqua-Flo FMHP Spa Pump 2 Speed 230V 02120000-1010

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⚙️ Gecko Aqua-Flo Flo-Master FMHP Spa Pump – 2.0 HP 2-Speed 230V (02120000-1010) The industry workhorse — high-flow side discharge power for demanding multi-jet spa systems �� Product Overview The Gecko Aqua-Flo Flo-Master FMHP (Model: 02120000-1010) is a 2.0 HP operational (3.0 HP total) dual-speed jet pump manufactured by Gecko Alliance, the global leader in spa and hot tub equipment. Featuring a side (offset) discharge configuration, this pump has been the workhorse of the spa industry for over 20 years, delivering proven reliability in thousands of installations across major hot tub brands including Coleman, Nordic, Baja Spa, Therma Spa, and Great Lakes Spas. Built around Gecko’s unique high-performance impeller that delivers flow rates exceeding all tested competition, the FMHP provides exceptional jet power on high speed and energy-efficient filtration on low speed. The compact 48-frame design with 1-1/2″ MBT connections and included quick-release compression fittings makes this pump a direct drop-in replacement for a wide range of OEM applications. The reinforced engineered plastic construction, stainless steel volute fasteners, and compact single spring elastomer bellows mechanical seal ensure maximum durability and drip-proof operation season after season. �� Key Features ✅ 2.0 HP Operational / 3.0 HP Total Dual-Speed Motor – Full jet power on high speed (3450 RPM), efficient circulation on low speed (1725 RPM) ✅ Side (Offset) Discharge Design – FMHP configuration for spas with side-discharge plumbing layouts ✅ 48Y Frame – Compact, industry-standard footprint for tight equipment compartments ✅ 230V / 60Hz Operation – Low amperage draw with US-standard hardwire 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 hassle-free installation ✅ Elastomer Bellows Mechanical Seal – Compact, unitized, single spring design — drip-proof and cool running to virtually eliminate seal burnout ✅ Rotatable Wet End – Can be rotated to accommodate different plumbing orientations ✅ Multi-Position Drain Plug – Located at 6 and 9 o’clock positions for flexible winterization access ✅ Built-In Overload Protection – Thermal protection safeguards the motor from overheating ✅ Stainless Steel Fasteners – Corrosion-resistant hardware for long-lasting assembly integrity ✅ 2-Year Manufacturer Warranty – Genuine OEM Gecko Alliance warranty coverage �� Technical Specifications Specification Value Pump Type Jet Pump (Side / Offset Discharge) Model Number 02120000-1010 Manufacturer Gecko Alliance (Aqua-Flo) Series Flo-Master FMHP Motor Power (Operational) 2.0 HP Motor Power (Total) 3.0 HP SPL Rating 3.6 – 4.0 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) 8.5 A Amperage (Low Speed) 2.8 A Frame Type 48Y (Thru-Bolt) Suction Port 1-1/2″ MBT (Male Buttress Thread), Center Discharge Port 1-1/2″ MBT (Male Buttress Thread), Side Port Inner Diameter 1-7/8″ Port Thread Outside Diameter Approximately 2-3/8″ to 2-7/16″ Discharge Style Side (Offset) Suction Style Center Drain Plug Location 6 and 9 o’clock Seal Type PS-200 (#200) Seal Part Number 92500150 Construction Reinforced Engineered Plastic Cord None (Hardwire Installation) Unions Two 1-1/2″ Compression Fittings Warranty 2 Years (Manufacturer) ⚠️ Note: OEM pump manufacturers may change motors and styles without notice. Pumps may ship with or without a run capacitor. Some sources list amperage as 8.6/2.8A depending on the specific motor revision — this is within normal manufacturing variation and does not affect compatibility. ⚡ Electrical Requirements Electrical Spec Requirement Supply Voltage 230V Frequency 60 Hz Phase Single Phase Full Load Amps (High Speed) 8.5 A Full Load Amps (Low Speed) 2.8 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. 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: 48Y (Thru-Bolt) �� Discharge: 1-1/2″ MBT — Side (Offset) �� Suction: 1-1/2″ MBT — Center �� Port Thread OD: Approximately 2-3/8″ to 2-7/16″ �� Drain Plug: 6 and 9 o’clock positions Known OEM Applications (Verified): This pump is used as an OEM or direct replacement pump in the following brands: Coleman Spas (Part #02120080-1, 02120511-2, 02120250) Nordic Spas (Part #03120031-1, 03120509-2) Baja Spa (Part #02120633-2 — wet end at 9 o’clock position) Therma Spa (Part #03120839) Great Lakes Spas (Part #02120510-2) Cross-Reference Part Numbers (Verified): This pump is also known by the following part numbers: 03121762 / 03121762-2 02120211-2 02120510-2 / 02120511-2 02120080-1 03120839 03120512-2 02120411-2 03120031-1 03120080-1 03120467-2 02120250 / 02120250-1 1-00-0055 02120000-1 / 02120 03120500-2 630-0407 182912 / 7-182912-03 2120000 301628 3420820-0Z 5121-200 612648 T55MWCFR-1288 02220511-2 02120571-2 03120533-1 03120205 02120485 03120351-2 (3.6 SPL) �� FMHP vs. FMCP: The FMHP features a side (offset) discharge, while the FMCP features a center discharge. Both use the same frame size, motors, and impellers. Verify your existing pump’s discharge orientation before ordering. The wet end can be rotated to match your plumbing layout. �� Installation Requirements Mounting: Requirement Specification Mounting Position Below water level (flooded suction) required Base Solid, level, vibration-dampening surface Ventilation Adequate clearance around motor for air cooling — keep louvered openings free from debris Access Sufficient clearance for inspection, maintenance, and wet end rotation Plumbing: Connection Size Style Suction 1-1/2″ MBT Center Discharge 1-1/2″ MBT Side (Offset) Fittings Included Two 1-1/2″ Quick-Release Compression Fittings — 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. ⚠️ The wet end can be rotated to change the discharge orientation — see Gecko Techbook for instructions. �� Maintenance Guide Routine Maintenance: Task Frequency Notes Check for leaks Monthly Around seal plate and union connections Inspect compression fittings Monthly Ensure properly aligned and secure — hand tighten only Clean strainer/trap basket As needed Inspect frequently; 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 signs of wear or damage; replace as 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: �� Seal Type: PS-200 (#200) �� Seal Part Number: 92500150 �� Impeller Part Number (2.0 HP): 91693700 �� Complete Wet End (2.0 HP FMHP): 91040730-000 �� Volute (FMHP Series): 92770501 �� Suction Cover (FMHP Series): 91231301 �� Volute O-Ring: 92200090 (#158) �� Wear Ring: 92830062 ⚠️ 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 using the drain plug (located at 6 or 9 o’clock positions) 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 ♨️ Hot tub jet pump Yes Primary application — ideal for multi-jet spa systems requiring side discharge ♨️ Entry to mid-range spa systems Yes Proven OEM pump for Coleman, Nordic, Baja, Therma Spa, Great Lakes and more ♨️ Booster jet setups Yes High-flow impeller delivers exceptional jet pressure �� Whirlpool bath Yes Suitable for whirlpool applications requiring powerful flow ♨️ Spa circulation (low speed) Yes Low speed at 1725 RPM provides efficient filtration circulation ❓ 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. Cross-reference listings may also show 3.6 – 4.0 SPL (“Special” HP rating), which reflects different measurement methods. When replacing an older Aqua-Flo pump, match the operational HP rating rather than the total HP. Q: Will this fit my hot tub? A: This pump has a 48Y frame with 1-1/2″ MBT connections — side (offset) discharge, center suction. The port threads measure approximately 2-3/8″ to 2-7/16″ outside diameter. Check your existing pump’s frame type, port size, and discharge orientation. If your pump has center discharge, you need the FMCP model instead. Q: What is the difference between the FMHP and FMCP? A: The FMHP has a side (offset) discharge, while the FMCP has a center discharge. Both use the same 48Y frame, motors, impellers, and seal. Choose based on your spa’s plumbing layout. The wet end can also be rotated to adjust the discharge direction within its offset configuration. 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. A 14/4 gauge, 2-speed AMP cord with 4-pin connector is required. You can often reuse your existing pump cord. Q: Does this pump include unions? A: Yes. Two 1-1/2″ quick-release compression fittings with o-rings are included for easy installation. 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. 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). The inside port diameter measures 1-7/8″ and the outside thread diameter measures approximately 2-3/8″ to 2-7/16″. Q: Can I rotate the wet end? A: Yes. The FMHP wet end can be rotated to accommodate different plumbing orientations in your equipment bay. Follow the instructions in the Gecko Techbook PDF for proper rotation procedure. 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), water leaking from the seal area, 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 in the volute. 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. Q: What is the difference between Operational HP and Total HP? A: In 2012, Aqua-Flo changed how pumps are rated. Operational HP (2.0 HP for this pump) reflects the actual continuous output. Total HP (3.0 HP) includes startup and peak performance ratings. When replacing an older pump, always match the operational HP to ensure correct performance. �� Why Choose the Gecko Aqua-Flo FMHP 2.0 HP ✅ Industry Workhorse – Over 20 years of proven reliability across thousands of spa installations worldwide ✅ Exceptional Flow Performance – Unique high-performance impeller delivers up to 150 GPM, exceeding all tested competition ✅ Genuine OEM Quality – Brand new Gecko Alliance pump — not an aftermarket or assembled unit ✅ Broad OEM Compatibility – Direct replacement for Coleman, Nordic, Baja, Therma Spa, Great Lakes, and many more brands ✅ Drip-Proof Seal Design – Cool running elastomer bellows mechanical seal virtually eliminates seal burnout ✅ Easy Installation – Quick-release compression fittings, rotatable wet end, and multi-position drain plug simplify the job ✅ 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 ✅ 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 FMHP 02120000-1010 is a 2.0 HP operational (3.0 HP total) dual-speed, 230V side discharge jet pump — the proven industry workhorse for multi-jet spa systems. With its compact 48Y frame, included unions, rotatable wet end, multi-position drain plug, drip-proof mechanical seal, and direct OEM compatibility with Coleman, Nordic, Baja, Therma Spa, Great Lakes, and many more brands, this pump delivers reliable, high-flow hydrotherapy performance backed by a 2-year Gecko Alliance warranty. 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″FBTUnion, Pump, Magic, 1-1/2"S x 1-1/2"FBT (Industry Standard) w/ O-Ring $6.36 Max: 379 Min: 1 Step: 1 Add to cartMagic Plastics Union 0602-20 (2″ Pump Union) | 2″S x 2″FBT w/ O-RingUnion, Pump, Magic, 2"S x 2"FBT (Industry Standard) w/ O-Ring $8.00 Max: 953 Min: 1 Step: 1 Add to cartWaterway 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: 135 Min: 1 Step: 1 Add to cart1 Speed Pump / Blower / AMP Cord | 21086Amp Plug, Pump, 1-Speed, 14/3, 4-Pin, 5' Cord, White $24.71 Max: 435 Min: 1 Step: 1 Add to cartBalboa Amp Plug 21087 (For 2 Speed Pumps)Amp Plug, Pump 1 (2-Speed) 14/4, 72" Long, White $31.72 Max: 160 Min: 1 Step: 1 Add to cart Hot Tub Pump Collar & Union Size Chart Hot Tub Pump Collar & Union Size Chart Imperial & Metric Specifications Union Size Collar Size Thread OD Union OD O-Ring Size 1.5" Female ButtressThread (FBT) 2.5" / 64mm (Tip to Tip)Measurement 2-1/2" 64mm 2-13/16" 71mm 2-5/16" OD 59mm 2" Female ButtressThread (FBT) 3.1" / 78mm (Tip to Tip)Measurement 3-1/16" 78mm 3-3/8" 81mm 2-15/16" OD 75mm 2.5" Female ButtressThread (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: 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.

2 HP Gecko Aqua-Flo FMHP Spa Pump 2 Speed 230V 02120000-1010

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