🛁 LX 48WUA1502C-II Spa Pump — 1.5 HP 2-Speed 230V 48 Frame

Whisper-quiet dual-speed performance for powerful hydrotherapy jets

💧 Product Overview

The LX 48WUA1502C-II is a 1.5 HP, 2-speed jet pump engineered by Guangdong Lingxiao Pump Industry Co., Ltd. for spa and hot tub applications across North America. Operating at 230V/60Hz, this compact 48-frame pump delivers high-speed massage jet performance at 3,450 RPM and energy-efficient low-speed filtration and circulation at 1,725 RPM — eliminating the need for a separate circulation pump in many installations.

Built with a mechanical seal for watertight, long-term continuous operation, the WUA series is widely recognized and accepted by major spa manufacturers. The 48WUA1502C-II features 2″ MBT (Male Buttress Thread) suction and discharge connections with a rotatable side discharge configurable in 90° increments, providing flexible plumbing options. It is a popular direct replacement for Aqua-Flo XP2e 1.5 HP 230V 48-frame pumps and Waterway Executive 48-frame pumps, making it an ideal drop-in upgrade for thousands of existing hot tub installations. Unions are included; pump cord is sold separately.

✨ Key Features

• ✅ 1.5 HP Output / 2.47 HP Input Power — Competitive rating of 2.5 HP for strong hydrotherapy jet performance
• ✅ 2-Speed Operation — High speed (3,450 RPM) for massage jets; low speed (1,725 RPM) for quiet filtration and circulation
• ✅ 230V / 60Hz — Standard US 230-volt operation with 8.0A high speed and 2.6A low speed draw
• ✅ 48Y Frame (Small Frame / Thru-Bolt) — Compact design compatible with standard 48-frame mounting footprints
• ✅ 2″ MBT Ports (Suction & Discharge) — Male Buttress Thread connections for 2″ inner diameter plumbing
• ✅ Rotatable Side Discharge — Configurable in 90° increments for flexible plumbing configurations
• ✅ Mechanical Seal — Ensures watertight operation during long-term continuous use
• ✅ Unions Included — Two 2″ pump unions included for convenient installation
• ✅ ETL Certified — Independently tested and certified for safety compliance
• ✅ 1-Year Manufacturer Warranty — Factory-backed warranty from Guangdong Lingxiao

🔩 Technical specifications

⚠️ Note: Flow rate (GPM), maximum head (ft), and power consumption (kW) are not included as no manufacturer PDF has been published for this specific model with those performance figures. Please refer to manufacturer documentation or contact Parts4Tubs for details.

⚠️ Note: Capacitor configuration may vary — pump may ship with 1 or 2 capacitors mounted on top of the motor depending on the currently supplied manufactured batch.

🔧 Parts and fittings for this

⚡ Electrical Requirements

⚠️ IMPORTANT:

All electrical work must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local building codes.

Hot tubs require GFCI (Ground Fault Circuit Interrupter) protection — install a GFCI in the circuit per NEC requirements.

A dedicated circuit is required — do not share with other appliances.

Permanently ground the motor using the green ground terminal provided within the motor end shield. For US installations, use a solid copper conductor, size 8 AWG or larger. For Canadian installations, a 6 AWG or larger solid copper bonding conductor is required.

The electrical connection must be carried out by qualified staff following UL 1563 and UL 1081 standards.

🔗 Compatibility Guide

Frame Dimensions:

Frame Type	Description
48 Frame (48Y)	Small frame / thru-bolt — motor diameter less than 6″ across the back
56 Frame	Large frame — motor diameter greater than 6″ across the back

⚠️ Verify your existing pump is a 48 frame before ordering. If your motor measures more than 6″ across the back, you need a 56-frame pump instead.

This Pump:

• 📐 Frame: 48Y (Thru-Bolt / Small Frame)
• 📐 Wet End: 2″ connections
• 📐 Discharge: 2″ MBT — Side discharge (rotatable 90°)
• 📐 Suction: 2″ MBT — Center (front face)
• 📐 Thread OD: 3-1/16″

Direct Replacement For:

• ✅ Aqua-Flo XP2e — 1.5 HP, 230V, 48 Frame, 2-Speed, 2″ inlet/discharge (Part No. 06115517-2040)
• ✅ Waterway Executive 48 — 1.5 HP, 230V, 48 Frame (Part No. 3420620-10)
• ✅ Wavemaster — Used in Watkins / Hot Springs spas (Part No. 0974001-03)

Also Known As:

• 10-48WUA1502 (alternate distributor part number)

⚠️ Always compare frame size, voltage, horsepower, port sizes, and discharge orientation before ordering a replacement pump.

🔧 Installation Requirements

Mounting:

Requirement	Specification
Mounting Position	Horizontal only
Base	Secure with screws through mounting holes in base/feet to prevent noise and vibration
Rating Label	Must remain visible after installation
Location	Do not install within an outer enclosure or beneath the skirt of a hot tub or spa

Plumbing:

Connection	Size
Suction	2″ MBT (center, front face)
Discharge	2″ MBT (side, rotatable in 90° increments)
Unions	2× included with pump

Installation Notes:

⚠️ Pump must be installed with flooded suction — never run the pump dry, as this causes seal and motor damage

⚠️ Suction pipe should be as short as possible for optimal performance

⚠️ Suction and discharge pipes should have a diameter equal to or greater than the pump intake — do not reduce pipe size

⚠️ Ensure proper grounding and bonding per NEC requirements (8 AWG solid copper for US, 6 AWG for Canada)

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

⚠️ Verify that the pump shaft turns freely before initial start-up

⚠️ Check that the rotation direction matches the arrow indicated on the fan cover

⚠️ Avoid dripping water on the motor — this will cause damage

🛠️ Maintenance Guide

Routine Maintenance:

Task	Frequency	Notes
Check for leaks	Monthly	Around seal and union connections
Inspect unions	Monthly	Tighten if needed — ensure good seal
Clean strainer/filter	As needed	Remove debris to maintain flow
Check amperage	Annually	Should match rated 8.0A high / 2.6A low
Inspect motor vents	Quarterly	Keep clear of debris for cooling
Check mounting screws	Quarterly	Tighten if loose to reduce vibration

Warning Signs — Replace Pump If:

• Unusual noise (grinding, screeching, humming)
• Water leaking from mechanical seal
• Motor trips breaker repeatedly
• Reduced water flow through jets
• Motor overheating or burning smell

Extended Storage:

If the pump will be idle for an extended period, the manufacturer recommends disassembling, cleaning, and storing it in a dry, well-ventilated place.

Cleaning Procedure (from Manufacturer):

1. Fill spa with water up to nozzle level
2. Operate pump for 2–3 minutes
3. Drain water from spa after motor stops

🎯 Ideal Applications

Application	Suitability	Notes
♨️ Hot tub jet pump	✅ Yes	Primary application — high speed for massage jets
♨️ Spa filtration/circulation	✅ Yes	Low speed provides energy-efficient filtration
🛁 Whirlpool bath	✅ Yes	Compatible with whirlpool systems using 2″ plumbing
♨️ Watkins / Hot Springs spas	✅ Yes	Direct replacement for Wavemaster 0974001-03

❓ Frequently Asked Questions

Q: What horsepower is this pump? A: The output power is 1.5 HP, with an input power of 2.47 HP and a competitive rating of 2.5 HP. When comparing pumps, use the input power (amperage) for the most accurate comparison, as HP ratings vary by manufacturer.

Q: Will this fit my hot tub? A: This pump has a 48Y (thru-bolt) frame with 2″ MBT suction and discharge ports. Measure your existing pump — the motor should be less than 6″ across the back for a 48-frame match. Also verify voltage (230V), port sizes (2″), and discharge orientation (side).

Q: What voltage does this pump require? A: 230V / 60Hz. All electrical installation must be performed by a licensed electrician. Using the wrong voltage will damage the motor.

Q: Can I use this on 115V? A: No. This is a 230V-only pump. For 115V applications, use the 48WUA1501C-II instead.

Q: Is this a single or dual speed pump? A: This is a 2-speed pump — high speed at 3,450 RPM for jet operation and low speed at 1,725 RPM for filtration and circulation.

Q: What size are the ports? A: Both suction and discharge are 2″ MBT (Male Buttress Thread). The outer diameter across the threads measures 3-1/16″ and connects to 2″ inner diameter plumbing.

Q: Which direction is the discharge? A: Side discharge, rotatable in 90° increments to match your plumbing configuration.

Q: What pump cord do I need? A: The pump does not include a cord. You can reuse your existing pump cord or purchase a compatible 230V 4-wire 2-speed pump cord (such as 30-1001C). For 2-speed operation, a 4-wire cord is needed: Common (White), Low Speed (Black), High Speed (Red), and Ground (Green).

Q: How do I wire this pump? A: Connect wiring per the included diagram: Green = Ground, White = Common, Black = Low Speed, Red = High Speed. When powered on, the pump should start in low speed first. If it starts in high speed, power down and reverse the black and red wires.

Q: Does this pump replace Aqua-Flo XP2e? A: Yes. The 48WUA1502C-II is commonly used to replace the Aqua-Flo XP2e 1.5 HP 230V 48-frame 2-speed pump (Part No. 06115517-2040).

Q: Does this replace Waterway Executive pumps? A: Yes. It replaces Waterway Executive 48-frame pumps including Part No. 3420620-10.

Q: What warranty is included? A: 1-year manufacturer warranty from Guangdong Lingxiao. 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.

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.

🏆 Why Choose the LX 48WUA1502C-II

• ✅ Powerful jet performance — 1.5 HP output with 2.5 HP competitive rating for strong hydrotherapy massage
• ✅ Energy-efficient dual speed — Low speed at only 2.6A saves energy during filtration cycles
• ✅ Reliable build quality — Mechanical seal, copper winding motor, and ETL certified for safety
• ✅ Drop-in replacement — Direct fit for Aqua-Flo XP2e, Waterway Executive 48, and Wavemaster pumps
• ✅ Flexible installation — Side discharge rotatable in 90° increments with included unions
• ✅ Factory warranty — 1-year manufacturer warranty backed by Guangdong 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, cords, and parts available
• ✅ Dedicated customer service team

✨ Summary

The LX 48WUA1502C-II is a 1.5 HP, 2-speed, 230V jet pump with a compact 48-frame design and 2″ MBT connections. Featuring a rotatable side discharge, included unions, and ETL certification, it serves as a direct drop-in replacement for Aqua-Flo XP2e, Waterway Executive 48, and Wavemaster pumps. Backed by a 1-year manufacturer warranty, this pump delivers powerful hydrotherapy performance and quiet low-speed filtration. Order today from Parts4Tubs for fast US shipping and expert support.

Find the right pump or motor

Enter what is printed on the label of the one you are replacing. Anything that differs is shown with the difference spelled out, so you can judge it for yourself.

EitherComplete pumpMotor only

Make or modelHorsepowerVoltageAny115V230VSpeedAny1-speed2-speedVariable speedAmpsPort size (pumps)Any3/4 in1 in1-1/2 in2 in2-1/2 inFrame (motors)Any48Y48 frame56Y56J56C56 frame

Clear

Port size is the plumbing thread, not the pipe — a 2 inch union measures about 3 inches across the male thread. Amps are compared to within half an amp, since published figures round differently between motor brands. Voltage is never treated as a near miss: a 115V motor is not one step from a 230V supply. Anything whose page does not publish a figure you entered is left out rather than offered with a caveat — search it by name to see it anyway.

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.

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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 Manufacturer part number 0602-15B Returns 30-day returns – see our returns policy	$6.36 Max: 235 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 Manufacturer part number 0602-20 Returns 30-day returns – see our returns policy	$8.00 Max: 404 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 Manufacturer part number 400-6010 UPC (GTIN) 806105082176 Returns 30-day returns – see our returns policy	$14.77 Max: 81 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 Manufacturer part number 21086 Returns 30-day returns – see our returns policy	$24.71 Max: 314 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 Manufacturer part number 21087 Returns 30-day returns – see our returns policy	$31.72 Max: 415 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
• 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.