🔧 LX Lingxiao 48WUA1001C-II Spa Pump – 1.0 HP 2-Speed 115V

Whisper-quiet dual-speed performance for powerful jets and energy-efficient filtration

💧 Product Overview

The LX Lingxiao 48WUA1001C-II is a dual-speed jet pump engineered specifically for spa and hot tub applications in North America. Built on a compact 48 frame platform, this 1.0 HP output pump operates on standard 115V/60Hz power, making it an ideal plug-and-play replacement for worn-out spa pumps without requiring costly electrical upgrades.

The two-speed design gives you the best of both worlds: high speed at 10.3 amps delivers robust jet power for a deep hydrotherapy massage, while low speed at just 3.8 amps handles quiet filtration and circulation duties with minimal energy consumption. With 2-inch center suction and adjustable side discharge, the 48WUA1001C-II is a direct drop-in replacement for the popular Aqua-Flo XP2e 1.0 HP 48-frame pumps and fits a wide range of spa brands and models.

Backed by UL, CUL, and ETL certifications and a 1-year manufacturer warranty, this pump combines Lingxiao’s 40+ years of pump manufacturing expertise with a Viton/Silicon Carbide/Graphite mechanical seal, pure copper winding motor, and anti-creep bearings for long-lasting, reliable performance.

⭐ Key Features

• ✅ Dual-Speed Motor – High speed for powerful jet massage, low speed for quiet filtration and circulation
• ✅ 1.0 HP Output Power – 115V/60Hz operation draws 10.3A (high) and 3.8A (low) for residential compatibility
• ✅ 48 Frame Thru-Bolt Design – Compact small-frame motor fits tight equipment bays
• ✅ 2-Inch Plumbing Connections – Male Buttress Thread (MBT) suction and discharge with two 2-inch unions included
• ✅ Adjustable Side Discharge – Factory default 12 o’clock position, rotatable to 3 o’clock or 9 o’clock for flexible installation
• ✅ Viton/Silicon Carbide/Graphite Mechanical Seal – Resistant to high and low temperatures, corrosion-resistant with high hardness for durable, leak-free performance
• ✅ Pure Copper Winding Motor – Runs cooler, lasts longer, and delivers consistent power output
• ✅ Anti-Creep Bearing – High-temperature grease ensures quiet, smooth operation over the life of the pump
• ✅ Texas Instruments Thermal Protector – Safeguards the motor from overheating damage
• ✅ UL, CUL, and ETL Certified – Meets rigorous North American electrical safety standards
• ✅ 1-Year Manufacturer Warranty – Full coverage from Lingxiao with dedicated technical support

🔩 Technical specifications

⚠️ Note on HP Rating: This pump is rated at 1.0 HP output (service factor horsepower). Some retailers may list it as 1.5 HP or 2.0 HP, which refers to the input or brake torque horsepower. The actual motor output delivering jet and circulation power is 1.0 HP. Always compare amperage draw (10.3A high / 3.8A low) when matching replacement pumps.

⚡ Electrical Requirements

⚠️ IMPORTANT ELECTRICAL SAFETY NOTICE:

• Hot tubs and spas require GFCI (Ground Fault Circuit Interrupter) protection as mandated by the NEC.
• A dedicated circuit is required. Do not share the circuit with other appliances.
• Verify your existing pump’s voltage before ordering. Using incorrect voltage will damage the motor and void the warranty.
• This pump does NOT include a power cord. A licensed electrician must wire the pump directly per local code requirements.

🔗 Compatibility Guide

Frame and Mounting

Specification	Detail
Frame Type	48 Frame (Small Frame, Thru-Bolt)
Motor Diameter	Approximately 5.6 inches
Wet End	2-inch
Suction	2-inch center intake, Male Buttress Thread
Discharge	2-inch adjustable side discharge, Male Buttress Thread
Union Thread OD	Approximately 3-1/16 inches across the male threads

This Pump Replaces

The 48WUA1001C-II is a verified drop-in replacement for the following pump models:

• ✅ Aqua-Flo XP2e – 1.0 HP, 115V, 48 Frame, 2-Speed, 2-inch connections (Part No. 06110510-2040)
• ✅ Aqua-Flo/Gecko Part Numbers: 02107000-1010, 02110000-1010, 02607000-1010, 02610000-1010, 06610006-2040
• ✅ Balboa DJAYEA-0153
• ✅ Waterway 3420410-1A, 3420410-15
• ✅ Master Spas X320556 (also referenced as 10-48WUA1001)
• ✅ OEM Part Numbers: 37334-03, 953384, 1014253, 1431701-03, 6505156, PD-110X

⚠️ Always verify your existing pump’s voltage (115V vs. 230V), amperage, frame size, and port sizes before ordering. Port sizes refer to the 2-inch inner diameter of the connecting hose/pipe; the outer diameter across the pump union threads measures approximately 3-1/16 inches.

🛠️ Installation Requirements

Mounting

Requirement	Specification
Mounting Position	Horizontal (standard spa equipment bay installation)
Base	Solid, level surface with vibration dampening
Ventilation	Ensure adequate airflow around the motor for cooling
Access	Allow sufficient clearance for maintenance and union access

Plumbing Connections

Connection	Size
Suction (Intake)	2-inch center, Male Buttress Thread
Discharge (Output)	2-inch side, Male Buttress Thread
Unions Included	2 x 2-inch unions included with pump

Wiring Terminals

Terminal	Wire Color (Typical)	Function
C	White	Common
L	Black	Low Speed
H	Red	High Speed
Ground	Green	Ground/Bonding

💡 Tip: When wiring, the pump should start in low speed first. If it starts in high speed, power down immediately and reverse the black and red wires. Running in the wrong speed configuration can cause the motor to overheat, especially in warm weather.

Installation Notes

⚠️ Pump must be installed below water level (flooded suction) to ensure proper priming.

⚠️ Never run the pump dry. Dry operation causes immediate seal damage and voids the warranty.

⚠️ Ensure proper grounding and bonding per NEC requirements. Use a minimum No. 8 AWG solid copper bonding conductor.

⚠️ GFCI protection is required by code for all hot tub and spa installations.

⚠️ Use the included unions for best seal compatibility. Unions from other manufacturers may not provide a proper seal.

⚠️ This pump does NOT include a drain plug barb nipple. If your existing installation requires one, order separately (Part No. 10-BARBLX-K or equivalent).

🔧 Maintenance Guide

Routine Maintenance

Task	Frequency	Notes
Check for leaks	Monthly	Inspect around mechanical seal and union connections
Inspect unions	Monthly	Hand tighten only; do not use a wrench
Clean strainer/filter	As needed	Remove debris to maintain proper flow
Check amperage draw	Annually	Should match rated 10.3A (high) / 3.8A (low)
Inspect motor vents	Quarterly	Keep clear of debris for proper cooling
Check mounting and bolts	Quarterly	Tighten if loose to reduce vibration
Inspect discharge position	During installation	Confirm discharge rotation matches your plumbing

Warning Signs – Replace Pump If:

• Unusual noise such as grinding, screeching, or humming without rotation
• Water leaking from the mechanical seal area
• Motor repeatedly trips the circuit breaker
• Noticeably reduced water flow at jets
• Motor overheating or shutting down on thermal protection
• Visible corrosion or damage to the wet end housing

Seal Replacement

• Seal Type: Viton / Silicon Carbide / Graphite (Mechanical Seal)
• ⚠️ Replace seal at the first sign of leakage to prevent motor damage
• Use only compatible LX/Lingxiao replacement seals for this wet end

Capacitor Specifications (For Service Technicians)

• Start Capacitor: 50 µF / 300V
• Run Capacitor: 40 µF / 450V

🎛️ Ideal Applications

Application	Suitability	Notes
♨️ Hot tub jet pump	Yes	Primary application; high speed powers jets, low speed handles filtration
♨️ Spa circulation and filtration	Yes	Low speed provides energy-efficient continuous circulation
🛁 Whirlpool bath	Yes	Compatible with whirlpool systems using 2-inch plumbing and 115V supply

Alternate Part Numbers

• 48WUA1001CII
• 37334-03
• 4000 37334

🔧 Parts and fittings for this

Commonly replaced parts

Parts commonly replaced on this item that we stock.

❓ Frequently Asked Questions

Q: What horsepower is this pump? A: The 48WUA1001C-II has a motor output of 1.0 HP. The input power is rated up to 1.5 HP. Some retailers may list it as 1.5 HP or even 2.0 HP due to different horsepower rating methods used in the industry. When comparing pumps, always match the amperage draw (10.3A high speed / 3.8A low speed at 115V) rather than relying solely on the HP label.

Q: Will this fit my hot tub? A: This pump has a 48 frame with 2-inch center suction and 2-inch adjustable side discharge using Male Buttress Thread connections. It is a direct replacement for the Aqua-Flo XP2e 1.0 HP 115V 48-frame pump and fits many spa brands. Check your existing pump’s frame size (48 vs. 56), port sizes (2 inch), voltage (115V), and amperage to confirm compatibility before ordering.

Q: What voltage does this pump require? A: This pump requires 115V / 60Hz. All electrical installation must be performed by a licensed electrician. If your current pump is 230V, you need the 230V version (48WUA1002C-II), not this model. Using the wrong voltage will damage the motor.

Q: Is this a single or dual speed pump? A: This is a 2-speed pump. High speed (10.3A) is used for jet operation and massage. Low speed (3.8A) is used for filtration, circulation, and heating cycles. The dual-speed design saves energy by running at low speed during non-jet operation.

Q: What size are the plumbing ports? A: Both suction and discharge ports are 2-inch Male Buttress Thread (MBT). The “2-inch” refers to the inner diameter of the connecting hose or pipe. The actual outer diameter across the union threads measures approximately 3-1/16 inches.

Q: Can I adjust the discharge direction? A: Yes. The discharge comes factory-set at the 12 o’clock position and can be rotated to the 3 o’clock or 9 o’clock position to match your existing plumbing layout.

Q: Does this pump come with unions? A: Yes, two 2-inch unions are included with the pump. It is recommended to use the included unions for the best seal. The pump does NOT include a power cord.

Q: What warranty is included? A: The 48WUA1001C-II comes with a 1-year manufacturer warranty from Lingxiao. The motor serial number label (located on the outside of the motor) is required for all warranty claims. Contact Parts4Tubs for full warranty terms and support.

Q: How do I know if my pump needs replacing? A: Common signs include unusual noise (grinding, screeching), water leaking from the seal area, reduced jet pressure, the motor tripping the circuit breaker, or the motor overheating and shutting down. If your pump shows any of these symptoms, it is likely time for a replacement.

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. This is a critical safety requirement that protects against electric shock.

Q: What brands does this pump replace? A: The 48WUA1001C-II is a verified replacement for Aqua-Flo XP2e 1.0 HP 115V 48-frame pumps, and is compatible with many OEM configurations from Master Spas, Waterway, Balboa, DreamMaker, and other brands. Always verify your exact part number and specifications before ordering.

🏆 Why Choose the LX 48WUA1001C-II

• ✅ Powerful Dual-Speed Performance – 1.0 HP output delivers strong jets on high speed and energy-efficient filtration on low speed
• ✅ Premium Build Quality – Pure copper winding motor, Viton/SiC/Graphite mechanical seal, and anti-creep bearings for durability
• ✅ Drop-In Replacement – Direct fit for Aqua-Flo XP2e and many other 48-frame 115V spa pumps with no plumbing modifications
• ✅ Quiet Operation – Anti-creep bearings with high-temperature grease and balanced motor design minimize operational noise
• ✅ Flexible Installation – Adjustable discharge direction (12, 3, or 9 o’clock) and included unions simplify setup
• ✅ Certified and Safe – UL, CUL, and ETL certified with built-in thermal protection for North American electrical standards
• ✅ 1-Year Warranty – Full manufacturer coverage with dedicated technical support from Lingxiao

🤝 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, capacitors, and parts available
• ✅ Dedicated customer service team

✨ Summary

The LX Lingxiao 48WUA1001C-II is a professional-grade, dual-speed 1.0 HP spa jet pump running on 115V/60Hz with 10.3A/3.8A amperage draw. Featuring a compact 48-frame design, 2-inch MBT plumbing connections, adjustable side discharge, Viton mechanical seal, and UL/CUL/ETL certifications, it is a direct drop-in replacement for Aqua-Flo XP2e and many OEM spa pumps. Backed by a 1-year manufacturer warranty, it delivers powerful jets and whisper-quiet filtration. Order today from Parts4Tubs with confidence.

Unions and pump cords: pick the union size that matches your pump's ports (see the size chart below), and a 4-wire cord for a 2-speed pump.

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
• Screwdriver
• New union O-rings
• A strap wrench, only if a union nut is stuck
• PVC primer and cement, only if you are gluing in new tailpieces

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. Unscrew the union nuts by hand. If one is stuck, use a strap wrench rather than a pipe wrench, which can crack the nut. 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. Pump unions use buttress threads that seal on an O-ring, so fit new O-rings and hand-tighten the nuts. Do not use thread tape, pipe dope or sealant on them.

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, hand-tightening the union nuts. If you are gluing in new PVC tailpieces, use PVC primer and cement on those joints.

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.