🔄 LX Lingxiao 48WUA2002C-I (NF) Spa Pump – 2.0 HP 1-Speed 230V 48-Frame

Dependable single-speed jet power engineered for Sundance and Jacuzzi spa systems

📋 Product Overview

The LX Lingxiao 48WUA2002C-I (NF) is a 2.0 HP single-speed jet pump designed specifically for spa usage in North America. Manufactured by Guangdong Lingxiao Pump Industry Co., Ltd. — a company with over 46 years of pump design and manufacturing expertise — this WUA series pump delivers powerful high-speed jet performance for hot tub hydrotherapy.

This baseless (no feet) configuration is purpose-built for Sundance and Jacuzzi spa systems, mounting via a separately sold bracket (part number 6000-532). The pump operates at 230V/60Hz with a 10.0-amp draw, connecting to 2-inch plumbing through male buttress thread (MBT) fittings on both the center-face suction and side discharge ports. It serves as the secondary single-speed jet pump in dual-pump spa configurations — providing dedicated high-speed massage jet power while the primary 2-speed pump (48WUA2002C-II) handles both jet and filtration duties.

With UL, CUL, and ETL certifications, a pure copper winding motor with thermal protection, and Lingxiao’s signature Viton/Silicon Carbide/Graphite mechanical seal, this pump delivers reliable and efficient performance backed by a 1-year manufacturer’s warranty.

⭐ Key Features

• ✅ 2.0 HP Single-Speed Motor – Delivers powerful, dedicated jet performance for hydrotherapy massage
• ✅ 230V / 60Hz Operation – US standard voltage with 10.0A current draw for efficient operation
• ✅ 48-Frame Compact Design – Space-efficient form factor fits tight spa equipment compartments
• ✅ 2″ × 2″ MBT Connections – Center suction and side discharge with 2-inch male buttress thread fittings (~3 1/16″ OD across threads)
• ✅ Baseless/Bracketless (NF) Configuration – Designed for Sundance and Jacuzzi built-in mounting systems using bracket 6000-532
• ✅ Rotatable Discharge – Side discharge can be rotated to 12, 3, 6, or 9 o’clock positions for flexible installation
• ✅ Pure Copper Winding Motor – Runs cooler and lasts longer than aluminum winding alternatives
• ✅ Viton/Silicon Carbide/Graphite Seal – Resistant to high and low temperatures, corrosion resistant, and extremely durable
• ✅ Anti-Creep Bearings – Filled with high-temperature grease for quiet, long-lasting operation
• ✅ Texas Instruments Thermal Protector – Automatic motor protection against overheating
• ✅ UL, CUL, ETL Certified – Meets North American safety and performance standards
• ✅ Unions Included – Two sets of 2-inch unions provided for quick plumbing connection
• ✅ 1-Year Manufacturer’s Warranty – Backed by Lingxiao’s factory warranty program

⚙️ Technical Specifications

⚠️ Dimensions Note: The version with feet (48WUA2002C-I) is listed at 16″L × 8-7/16″W × 8-7/16″H by the manufacturer. The baseless NF version and the closely related 2-speed model (48WUA2002C-II) are listed at 17-1/2″L × 8-7/16″W × 8-7/16″H across multiple distributors. Slight dimensional variations are normal depending on the motor supplied. Please verify clearance if space is limited.

⚠️ HP Rating Note: This pump is marketed as 2.0 HP. In the spa industry, horsepower ratings can vary based on measurement method (output HP vs. input HP vs. competitive/brake HP). The 2.0 HP rating represents the standard output horsepower. The input power at 10.0A / 230V is approximately 3.08 HP. Always match amperage and frame size — not just HP — when selecting a replacement pump.

⚡ Electrical Requirements

⚠️ IMPORTANT ELECTRICAL SAFETY:

• 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 is mandated by the NEC.
• A dedicated circuit is required — do not share with other appliances.
• Proper grounding and bonding per NEC requirements is mandatory.
• Verify your existing spa wiring voltage before ordering — using the wrong voltage will damage the motor.

🔗 Compatibility Guide

This Pump:

• 📍 Frame: 48-Frame (NEMA 48Y)
• 📍 Wet End: 2-inch
• 📍 Intake: 2″ MBT center face suction (~3 1/16″ OD across threads)
• 📍 Discharge: 2″ MBT side discharge (~3 1/16″ OD across threads)
• 📍 Mounting: Baseless — requires bracket 6000-532

Direct Replacement For (Verified):

• Sundance 6500-091
• Sundance 6500-097
• Sundance 6500-341
• Sundance 6500-349
• Sundance 05225427-2

Used In: Sundance Spas and Jacuzzi Hot Tubs as the secondary single-speed jet pump.

Also Commonly Replaces:

• Aqua-Flo XP2e 2.0 HP 230V 48-Frame 1-Speed pumps with 2″ plumbing (entire pump must be replaced — wet end parts are NOT interchangeable between LX and Aqua-Flo)

⚠️ Important Compatibility Notes:

• This is a 1-speed pump used as the secondary jet pump in dual-pump Sundance/Jacuzzi systems. For the primary 2-speed pump, see model 48WUA2002C-II (replaces 6500-343).
• The wet end parts from this pump are NOT compatible with Theramax, Theraflo, or Aqua-Flo pumps used in 1997-1998 models.
• This baseless (NF) version requires mounting bracket 6000-532 (sold separately). Verify your existing mounting configuration before ordering.
• Always match frame size, voltage, amperage, speed type, and port sizes when selecting a replacement pump.

🛠️ Installation Requirements

Mounting:

Plumbing:

Installation Notes:

• ⚠️ Pump must be installed below water level (flooded suction) — never run pump dry
• ⚠️ Running dry will damage the mechanical seal — water acts as coolant and lubricant for the seal
• ⚠️ Hand-tighten unions only — do NOT use pipe wrenches on union connections
• ⚠️ Do NOT use thread sealant or Teflon tape on union-style compression fittings
• ⚠️ Ensure proper grounding and bonding per NEC requirements
• ⚠️ GFCI protection is required by code for all hot tub installations
• ⚠️ Pump cord is NOT included — reuse your existing cord or purchase a compatible AMP-style 1-speed cord
• ⚠️ To rotate the discharge direction, loosen the four long thru-bolts at the back of the motor, rotate the wet end to the desired position, and re-tighten evenly

🔧 Maintenance Guide

Routine Maintenance:

Warning Signs — Replace Pump If:

• Unusual noise (grinding, screeching, or rattling)
• Water leaking from the seal plate area
• Motor trips breaker repeatedly
• Reduced water flow or jet pressure
• Motor overheating or hot to the touch
• Amperage draw significantly above 10.0A rating

Seal Replacement:

• 📍 Seal Type: Viton / Silicon Carbide / Graphite mechanical seal
• ⚠️ Replace seal at first sign of leakage from the seal plate area
• ⚠️ Use only LX WUA-compatible seal assemblies — seals from Aqua-Flo, Waterway, or other brands may not fit

🎯 Ideal Applications

❓ Frequently Asked Questions

Q: What horsepower is this pump? A: This pump is rated at 2.0 HP output. The actual input power at 10.0 amps / 230V is approximately 3.08 HP. In the spa industry, different HP measurement methods can yield different numbers — always match amperage and frame size for accurate replacement.

Q: Will this fit my hot tub? A: This pump has a 48-frame with 2-inch MBT connections on both intake and discharge. It is a baseless (no feet) pump designed for Sundance and Jacuzzi spas that use bracket mounting (bracket 6000-532). Check your existing pump’s frame size, port sizes, voltage, and mounting type before ordering.

Q: What voltage does this pump require? A: 230V / 60Hz single phase. All electrical installation must be performed by a licensed electrician. Using the wrong voltage will damage the motor — verify your existing spa wiring before ordering.

Q: Is this a single or dual speed pump? A: This is a single-speed pump (high speed only). It is commonly used as the secondary jet pump in Sundance and Jacuzzi dual-pump systems. For the primary 2-speed version, see model 48WUA2002C-II.

Q: What size are the ports? A: Both intake (suction) and discharge ports are 2″ male buttress thread (MBT). The outer diameter across the threads measures approximately 3 1/16″. The intake is center-face and the discharge is side-mounted, rotatable to 12, 3, 6, or 9 o’clock positions.

Q: Does this pump include a cord? A: No, the pump cord is NOT included. You can reuse the existing cord from the pump being replaced, or purchase a compatible AMP-style 1-speed pump cord separately. Wiring is 3-wire: Green (Ground), White (Common), Black (High Speed).

Q: Does this pump include unions? A: Yes, two sets of 2-inch unions are included for connection to your existing plumbing.

Q: Does this pump have feet/a base? A: No, this is the baseless (NF) version designed for bracket mounting. The mounting bracket (part number 6000-532) is sold separately. You can typically reuse the existing bracket from the pump being replaced if it is in good condition.

Q: What Sundance/Jacuzzi pumps does this replace? A: This pump directly replaces Sundance part numbers 6500-091, 6500-097, 6500-341, 6500-349, and 05225427-2. It is used as the single-speed secondary jet pump in these systems.

Q: Can I use parts from my old Aqua-Flo pump with this LX pump? A: No. While this LX pump can replace Aqua-Flo XP2e 2.0HP 48-frame pumps, the wet end parts are NOT interchangeable between LX and Aqua-Flo. The entire pump assembly must be replaced.

Q: What warranty is included? A: 1-year manufacturer’s limited warranty directly through Lingxiao (LX). The motor serial number label (located on the outside of the motor, next to the red arrow) is required for all warranty claims. Contact Parts4Tubs for full warranty terms and support.

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.

Q: What is the difference between 48WUA2002C-I and 48WUA2002C-II? A: The “-I” suffix indicates single-speed (1-speed) and the “-II” suffix indicates dual-speed (2-speed). The 48WUA2002C-I (NF) is the single-speed secondary jet pump. The 48WUA2002C-II (NF) is the 2-speed primary pump used in the same Sundance/Jacuzzi systems.

🏆 Why Choose the LX 48WUA2002C-I (NF)

• ✅ Proven OEM Replacement – Direct replacement for Sundance and Jacuzzi spa systems with verified part number cross-references
• ✅ 46+ Years of Manufacturing Expertise – Built by Guangdong Lingxiao, a global leader in spa and pool pump manufacturing
• ✅ Pure Copper Winding Motor – Superior heat dissipation and longer motor life compared to aluminum alternatives
• ✅ Triple-Certified Safety – UL, CUL, and ETL certifications ensure North American safety compliance
• ✅ Durable Mechanical Seal – Viton/Silicon Carbide/Graphite seal resists temperature extremes and corrosion
• ✅ Unions Included – Ready to install with included 2-inch union fittings
• ✅ Flexible Discharge Orientation – Rotatable to four positions for easy installation in any configuration
• ✅ 1-Year Manufacturer’s Warranty – Factory-backed warranty with serial number tracking

🤝 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, unions, and pump cords available
• ✅ Dedicated customer service team
• ✅ Mounting bracket 6000-532 available separately

✨ Summary

The LX Lingxiao 48WUA2002C-I (NF) is a 2.0 HP single-speed 230V jet pump built on the proven WUA platform with a 48-frame baseless design for Sundance and Jacuzzi hot tubs. Featuring UL/CUL/ETL certifications, a copper winding motor with thermal protection, Viton/Silicon Carbide/Graphite mechanical seal, and included 2-inch unions, it delivers reliable high-speed jet performance as a direct replacement for Sundance 6500-091, 6500-097, 6500-341, and 6500-349. 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
	Magic Plastics Union 0602-20 (2″ Pump Union) | 2″S x 2″FBT w/ O-Ring Union, Pump, Magic, 2"S x 2"FBT (Industry Standard) w/ O-Ring	$8.00 Max: 491 Min: 1 Step: 1 Add to cart
	Waterway 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: 145 Min: 1 Step: 1 Add to cart
	1 Speed Pump / Blower / AMP Cord | 21086 Amp Plug, Pump, 1-Speed, 14/3, 4-Pin, 5' Cord, White	$24.71 Max: 426 Min: 1 Step: 1 Add to cart
	Balboa Amp Plug 21087 (For 2 Speed Pumps) Amp Plug, Pump 1 (2-Speed) 14/4, 72" Long, White	$31.72 Max: 172 Min: 1 Step: 1 Add to cart

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.