💧 LX LP200 Spa Pump – 2.0 HP Single Speed Jet Pump
Exceptional power and flow for demanding hydrotherapy jet systems
♨️ Product Overview
The LX LP200 is a powerful 2.0 HP single-speed jet pump engineered for hot tubs and spas that demand superior water flow and jet performance. Delivering an impressive maximum flow rate of 535 litres per minute with 1.5 kW of reliable motor power, this pump is one of the most widely used single-speed pumps across Chinese-manufactured hot tubs, swim spas, and numerous European spa brands.
Designed as a high-performance booster pump, the LP200 delivers exceptional water volume through massage jets, creating the intense hydrotherapy experience that spa owners desire. The centre suction with side discharge configuration provides installation flexibility whilst the thermally protected motor ensures safe, reliable operation even under demanding conditions.
The LP series has earned its reputation as the preferred replacement for discontinued Theramax pumps in Jacuzzi and Sundance spas, offering comparable performance at a significantly more economical price point. With robust construction, upgraded ceramic/Viton shaft seals, and a finned motor body for superior heat dissipation, the LP200 delivers professional-grade reliability that technicians and spa owners trust worldwide.
This pump is specifically designed for post-2008 spa systems and serves as an excellent cost-effective alternative to premium American pump brands including Aqua-Flo XP2e and Waterway Executive models.
✨ Key Features
- ✅ 2.0 HP Motor Power – 1.5 kW output delivers substantial water flow for powerful massage jet performance
- ✅ High Flow Rate – Maximum 535 L/min for intense jet action across multiple nozzles
- ✅ Single Speed Operation – Reliable 2900 RPM motor for consistent, dependable performance
- ✅ 48 Frame Motor – European-style finned body design for efficient heat dissipation
- ✅ 2″ Plumbing Connections – 79mm centre suction × 79mm side discharge with buttress thread unions
- ✅ Thermally Protected Motor – Built-in TI.USA thermal protection prevents overheating damage
- ✅ Upgraded Shaft Seal – Ceramic/Viton Type A mechanical seal for superior longevity
- ✅ Pre-Wired with AMP Plug – Factory-fitted 3-core AMP cable for straightforward installation
- ✅ Rotatable Wet End – 4-bolt wet end repositions to match any plumbing configuration
- ✅ Corrosion Resistant – Suitable for salt water and weak corrosive liquid applications
- ✅ Multi-Brand Compatible – Direct replacement for Jacuzzi, Sundance, Aqua-Flo, and Waterway pumps
- ✅ 1 Year Manufacturer Warranty – Standard warranty with extended options available
🔧 Technical Specifications
| Specification | Value |
|---|---|
| Pump Type | Single Speed Jet Pump / Booster Pump |
| Motor Power | 2.0 HP / 1.5 kW |
| Speed Settings | Single Speed |
| Flow Rate (Max) | 535 L/min |
| Maximum Head | 13 m |
| Voltage | 220-240 V |
| Frequency | 50 Hz |
| Amperage | 7.0 A |
| Motor Speed | 2900 RPM |
| Frame Type | 48F (European Finned Body) |
| Wet End | 2 inch |
| Discharge Port | 79 mm (2 inch) – Side |
| Suction Port | 79 mm (2 inch) – Centre |
| Union Thread | 78 mm outer thread / 60 mm internal |
| Port Position | Centre suction / Side discharge |
| Seal Type | Type A Mechanical Shaft Seal (Ceramic/Viton) |
| Capacitor | 30 µF |
| Impeller Part No. | B351-21 |
| Impeller Diameter | 107 mm |
| Dimensions (L×W×H) | 385 × 200 × 220 mm |
| Plug Type | 3-Core AMP |
| Warranty | 1 year manufacturer |
⚡ Electrical Requirements
| Electrical Spec | Requirement |
|---|---|
| Supply Voltage | 220-240 V |
| Frequency | 50 Hz |
| Phase | Single Phase |
| Full Load Amps | 7.0 A |
| Capacitor | 30 µF |
| Thermal Protection | TI.USA thermal protector |
| Cable Supplied | 3-Core with AMP plug |
⚠️ IMPORTANT:
All electrical work must be carried out by a qualified electrician in accordance with UK wiring regulations (BS 7671). Hot tubs require RCD protection (30mA). Ensure the circuit breaker is appropriately rated for the pump’s 7.0 A draw. The pump must be properly earthed before operation.
🔄 Compatibility Guide
Frame & Connection Dimensions:
| Component | Specification |
|---|---|
| Frame Type | 48F (European Finned Body) |
| Wet End Size | 2 inch |
| Union Thread | 78 mm outer / 60 mm internal |
| Suction Port | 79 mm centre |
| Discharge Port | 79 mm side |
This Pump Configuration:
- 📍 Frame: 48F European-style finned body motor
- 📍 Wet End: 2 inch with rotatable positioning (4-bolt)
- 📍 Discharge: 79 mm (2″) side discharge
- 📍 Suction: 79 mm (2″) centre suction
- 📍 Impeller: 107 mm diameter (B351-21)
Factory Fitted To:
- AMC Winer Spas
- Aegean Spas
- Bluewhale Spa
- Canadian Spa Company
- Cascade Hot Tubs
- Castle Hot Tubs
- Catalina Spas
- Direct Hot Tubs
- H2O Hot Tubs
- Happy Hot Tubs
- Hot Tub Suppliers
- HotSpring (Watkins)
- Hydrospa
- Hydropool
- Jacuzzi
- Kinedo
- Leisure Bay
- MAAX Spas
- Marquis Spa
- Monalisa Hot Tubs
- Signature Spas
- Spaform
- Spa Serve
- Sundance Spas
- Trade Price Hot Tubs
- Trinity Spas
- Wellis Spas
- Wizard Hot Tubs
Direct Replacement For:
- Jacuzzi Theramax pumps (discontinued)
- Sundance Theramax pumps (discontinued)
- Aqua-Flo XP2e 2.0 HP
- Waterway Executive 2.0 HP
- RWA 2HP Single Speed
Jacuzzi OEM Part Numbers:
- 6500-124
- 6500-239
- 6500-240
- 6500-294
Other Part Numbers:
- Watkins/HotSpring: 37066-03 (labelled “Watkins Wavemaster 800”)
- Kinedo: SPOM010
- Wellis: ACM0079
- Volition: 20PL or PL200
⚠️ IMPORTANT NOTE – Pre-2008 Pumps:
Older (pre-2008) LP & WP pumps and wet ends are manufactured with a shorter section (approx. 15mm) and discharge port (approx. 30mm). If replacing a pre-2008 version (wet end labelled B351-03) on a spa with rigid plumbing, the newer version may not align with existing pipework. In these cases, the Waterway Executive equivalent may provide a better fit.
🛠️ Installation Requirements
Mounting:
| Requirement | Specification |
|---|---|
| Mounting Position | Horizontal (standard) |
| Base | Solid, level, vibration-dampening surface |
| Ventilation | Adequate clearance around finned motor body for cooling |
| Access | Allow space for maintenance and seal replacement |
Plumbing:
| Connection | Size |
|---|---|
| Suction | 79 mm (2 inch) centre |
| Discharge | 79 mm (2 inch) side |
| Union Type | 2.0 inch buttress thread (78mm outer) |
| Union Internal Diameter | 60 mm |
Installation Notes:
- ⚠️ Pump must be installed below water level (flooded suction) for proper priming
- ⚠️ Never run pump dry – causes immediate seal damage and motor overheating
- ⚠️ Ensure proper bonding to earth in accordance with BS 7671
- ⚠️ The wet end can be rotated by removing the 4 motor screws to suit your plumbing layout (left, right, top-left, or top-right discharge positions)
- ⚠️ Check discharge port alignment with existing plumbing before installation
- 💡 Use new unions and O-rings when replacing an existing pump
- 💡 The existing cable from your old pump can often be reused if in good condition
- 💡 American smooth-body motor pumps can be replaced with this finned-body model – check vertical clearance as these are slightly taller due to top-mounted capacitor
⚙️ Maintenance Guide
Routine Maintenance:
| Task | Frequency | Notes |
|---|---|---|
| Check for leaks | Monthly | Inspect around seal and union connections |
| Inspect unions | Monthly | Tighten if needed, replace O-rings if damaged |
| Clean strainer/filter | As needed | Remove debris to maintain flow |
| Check amperage | Annually | Should match 7.0 A rating |
| Inspect motor vents | Quarterly | Keep finned body clear of debris for cooling |
| Check mounting bolts | Quarterly | Tighten if loose to reduce vibration |
| Listen for unusual noise | Each use | Early detection prevents major failures |
Warning Signs – Replace Pump If:
- Unusual noise (grinding, screeching, or humming without rotation)
- Water leaking from mechanical seal area
- Motor trips circuit breaker repeatedly
- Noticeably reduced water flow or jet pressure
- Motor overheating or burning smell
- Visible corrosion on motor housing
Seal Replacement:
- 📍 Seal Type: Type A Mechanical Shaft Seal (Ceramic/Viton upgrade)
- ⚠️ Replace seal at first sign of leakage – running a leaking pump damages bearings
Spare Parts Available:
- Mechanical seal (Type A)
- Motor bearings (6203Z & 6204Z set)
- Capacitor (30 µF)
- Impeller (B351-21, 107mm diameter)
- Complete wet end assembly (2HP)
- Cooling fan (124mm or 156mm)
- Fan cover
- Pump unions and O-rings (70mm for unions, 145mm for wet end face plate)
- Drain plugs and bleed valves
🎯 Ideal Applications
| Application | Suitability | Notes |
|---|---|---|
| ♨️ Hot tub jet pump | Excellent | Primary use – powers hydrotherapy massage jets |
| ♨️ Spa booster pump | Excellent | High flow for powerful multi-jet systems |
| 🛁 Whirlpool bath | Good | Suitable for larger whirlpool installations |
| 💪 Swim spa jets | Good | Powers jet systems in swim spas |
Additional Applications:
- Water circulation for fish ponds (including salt water and seawater)
- Weak corrosive liquid circulation (without solid particles)
- Workshop fluid circulation and cooling systems
❓ Frequently Asked Questions
Q: What horsepower is this pump?
A: The LX LP200 is rated at 2.0 HP (1.5 kW), delivering up to 535 litres per minute maximum flow rate and 13 metres maximum head pressure.
Q: Will this fit my hot tub?
A: This pump has a 48F frame with 2 inch wet end and 79mm centre suction / side discharge ports. It’s designed for post-2008 spa systems. Check your existing pump’s frame size and port configuration for compatibility. The LP200 is factory-fitted to numerous brands including Jacuzzi, Sundance, HotSpring, MAAX, Cascade, Canadian Spa, and many Chinese-manufactured spas.
Q: What voltage does this pump require?
A: 220-240V / 50Hz single phase supply drawing 7.0 amps at full load. All electrical installation must be carried out by a qualified electrician in accordance with BS 7671.
Q: Is this a single or dual speed pump?
A: This is a single speed pump running at 2900 RPM. If you require a dual speed pump, consider the LX WP200-II which offers both high and low speed operation.
Q: What size are the ports?
A: Suction: 79mm (2 inch) centre. Discharge: 79mm (2 inch) side. Union connections use 78mm outer thread with 60mm internal diameter.
Q: Can this replace my Theramax pump?
A: Yes, the LP series is the recommended replacement for discontinued Theramax pumps used in Jacuzzi and Sundance spas, offering comparable performance at a more economical price.
Q: Can this replace an Aqua-Flo XP2e or Waterway Executive?
A: Yes, the LP200 has similar alignment of inlet and outlet ports to both the Aqua-Flo XP2e and Waterway Executive, making it a cost-effective replacement option.
Q: What is the difference between this and the LP150?
A: The LP200 delivers 2.0 HP (1.5 kW) compared to the LP150’s 1.5 HP (1.1 kW). The LP200 provides higher flow rate (535 L/min vs 520 L/min) and draws more current (7.0 A vs 5.8 A). Choose the LP200 for larger spas or more demanding jet systems.
Q: What warranty is included?
A: The manufacturer provides a 1 year standard warranty. Extended warranty options are available through Parts4Tubs.
Q: Can I rotate the wet end to match my plumbing?
A: Yes, the wet end is attached with 4 motor screws. Removing these allows you to rotate the wet end to suit your plumbing layout – options include standard (top), left, top-left, right, or top-right discharge positions.
Q: My spa was made before 2008 – will this fit?
A: Pre-2008 LP/WP pumps have slightly different dimensions (shorter section and discharge port). If your spa has rigid plumbing, the newer LP200 may not align perfectly. In these cases, a Waterway Executive equivalent may provide a better fit, or plumbing modifications may be required.
🏆 Why Choose the LX LP200
- ✅ Superior Power – 2.0 HP motor delivers excellent jet performance for larger spas
- ✅ High Flow Capacity – 535 L/min maximum flow for intense hydrotherapy
- ✅ Proven Reliability – One of the most trusted pumps across the European hot tub market
- ✅ Cost-Effective Replacement – Economical alternative to Theramax, Aqua-Flo, and Waterway pumps
- ✅ Wide Compatibility – Direct fit for Jacuzzi, Sundance, HotSpring, and many other brands
- ✅ Upgraded Components – Ceramic/Viton seal and finned motor for enhanced durability
- ✅ Flexible Installation – Rotatable wet end suits various plumbing configurations
- ✅ Comprehensive Spares – All replacement parts readily available
🤝 Why Buy From Parts4Tubs
- ✅ UK-based company with local customer support
- ✅ Fast UK delivery options available
- ✅ Expert advice from experienced spa specialists
- ✅ Competitive pricing on genuine LX pumps
- ✅ Full manufacturer warranty support
- ✅ Easy returns within 30 days
- ✅ Replacement seals, impellers, bearings, and spare parts stocked
- ✅ Compatibility guidance for your specific hot tub model
⭐ Summary
The LX LP200 is a powerful, dependable 2.0 HP single-speed jet pump delivering exceptional 535 L/min flow rate for demanding hydrotherapy applications. As the industry-preferred replacement for Jacuzzi and Sundance Theramax pumps, and a proven alternative to Aqua-Flo XP2e and Waterway Executive models, it offers professional-grade performance at an outstanding price point. With upgraded ceramic/Viton seals, thermally protected motor, rotatable wet end, and compatibility with dozens of major spa brands worldwide, the LP200 is the smart choice for both replacement and upgrade installations. Backed by manufacturer warranty and comprehensive spare parts availability, this pump delivers reliable performance for years of relaxing spa enjoyment.
The hot tub industry doesnt make it easy for you when you are trying to match up the size of the unions (the part that screws your pipe work onto the pumps) Below you can see the physical sizes of the collars, and how they relate to the actual union size you need. So a measurement of 2.5", edge to edge on the collar of the pump is actually a 1.5" union - confusing - absolutely! If you are not sure, give me a shout!
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.









