🔧 LX Lingxiao 48WTC0153C-I Spa Circulation Pump – 1/15 HP Single Speed 115/230V

Whisper-quiet 24-hour circulation for crystal clear, perfectly heated spa water

💧 Product Overview

The LX Lingxiao 48WTC0153C-I is a compact, energy-efficient 24-hour circulation pump engineered specifically for hot tub and spa systems. Manufactured by Guangdong Lingxiao Pump Industry Co., Ltd. — a company with over 46 years of pump design and manufacturing expertise — this single-speed circulation pump delivers reliable, continuous water flow to maintain optimal filtration and heating efficiency.

Rated at 1/15 HP with dual-voltage capability (115V or 230V), this versatile pump operates on a 48-frame motor at 1725 RPM, providing steady circulation through 1-1/2″ MBT plumbing connections with a side discharge configuration. The pump ships configured for 230V operation and can be easily converted to 115V by repositioning internal wiring per the included instructions.

Designed as a direct drop-in replacement for Aqua-Flo/Gecko Circ-Master CMHP and Waterway circulation pumps with matching specifications, the 48WTC0153C-I includes two 1-1/2″ unions for convenient installation. Its high-strength engineering plastics and wear-resistant mechanical seal ensure watertight, trouble-free operation for years of continuous use.

⭐ Key Features

• ✅ 24-Hour Circulation Pump – Designed for continuous operation to maintain water clarity, temperature, and filtration around the clock
• ✅ 1/15 HP Single Speed Motor – Energy-efficient 48-frame motor running at 1725 RPM delivers consistent, reliable water flow
• ✅ Dual Voltage Operation (115V/230V) – Convertible design works with either 115V or 230V electrical systems at 60 Hz, providing maximum installation flexibility
• ✅ 1-1/2″ MBT Plumbing Connections – Standard 1-1/2″ inlet and 1-1/2″ side discharge fit most spa plumbing configurations
• ✅ Unions Included – Ships with two 1-1/2″ unions for fast, leak-free installation
• ✅ Rotatable Wet End – Wet end can be rotated to match your existing plumbing orientation without additional adapters
• ✅ Wear-Resistant Mechanical Seal – High-quality Viton/silicon carbide/graphite mechanical seal ensures long-lasting watertight operation
• ✅ High-Strength Engineering Plastics – Corrosion-resistant and durable pump housing built for continuous hot tub environments
• ✅ Pure Copper Motor Windings – Excellent heat dissipation extends motor life and ensures efficient operation
• ✅ Anti-Creep Bearings – High-temperature lubricating oil bearings for ultra-quiet, smooth running
• ✅ Compact Design – Small footprint makes this pump an ideal replacement for comparable circulation pump brands
• ✅ 1-Year Manufacturer Warranty – Factory-backed warranty directly from Guangdong Lingxiao Pump Industry Co., Ltd.

🔩 Technical specifications

🔧 Exploded diagram and parts

This part belongs to the StaRite LT Series Pumps assembly. Everything listed below is something we stock for it, and the numbers match the diagram.

Complete pumps

Complete motors

Parts that go with this

Commonly replaced parts

Parts commonly replaced on this item that we stock.

⚡ Electrical Requirements

Wiring Configuration:

The 48WTC0153C-I ships from the factory configured for 230V operation. To convert for 115V operation:

1. Follow the Low Voltage wiring diagram included with the pump
2. Connect the BROWN internal motor wire to Terminal 2
3. Connect the BLUE internal motor wire to Terminal 1
4. The WHITE and BLACK wires remain in their original positions for both voltage configurations

⚠️ IMPORTANT ELECTRICAL SAFETY WARNINGS:

• All electrical work must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and local building codes.
• Hot tubs and spas require GFCI (Ground Fault Circuit Interrupter) protection — this is mandated by the NEC.
• A dedicated circuit is required — do not share the circuit with other appliances.
• Ensure proper grounding and bonding per NEC requirements.
• Using incorrect voltage will damage the motor. Always verify your system voltage before installation.

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🔗 Compatibility Guide

🛒 Recommended items

Frame and Mounting

Specification	This Pump
Frame Type	48Y (Thru-Bolt)
Wet End	1-1/2″ MBT
Discharge	1-1/2″ Side Discharge
Suction (Inlet)	1-1/2″ MBT

Direct Replacement For

This pump is a direct drop-in replacement for the following OEM circulation pumps:

Aqua-Flo / Gecko Circ-Master CMHP:

Part Number	Notes
02093000-2010	Circ-Master CMHP 115V
02093001-2010	Circ-Master CMHP 230V
02593000-2010	Gecko Circ-Master
02593001-2010	Gecko Circ-Master
02093635-2	Discontinued – replaced by 02093000-2010
02093636-2	Aqua-Flo CMHP
02093637-2	Aqua-Flo CMHP
02093644	Aqua-Flo CMHP
02093695-2	Aqua-Flo CMHP
02410362-2	Aqua-Flo CMHP
02410433-2	Aqua-Flo CMHP
02410512-2	Aqua-Flo CMHP
02093460-2	Aqua-Flo CMHP
02093012-2510	Dynasty Spas

Waterway:

Part Number	Notes
3410020-1E	Waterway Circulation Pump
3410030-1E	Waterway Circulation Pump

Sundance / Jacuzzi:

Part Number	Notes
6500-907	Sundance Spas (Pre 07/2011)
6000-907	Sundance Spas (Post 07/2011)

Other Cross-Reference Numbers:

Part Number	Notes
SG9006-1E	Cross-reference
6154106-S (K55MYLLE-2450)	Motor cross-reference
34-343-1020	Distributor part number
34-402-1140	Distributor part number
10-48WTC0153	Alternate LX part number
14154	Gecko
1-00-0053	Allied
108897	Coleman / Maax Spas
321810	Cross-reference
X321790	Cross-reference

230V Circulation Pumps Replaced (with wiring modification):

Part Number	Notes
02408492-2	Requires 230V wiring configuration
02408492-2510	Requires 230V wiring configuration
02403466-2	Requires 230V wiring configuration
02093634-2	Requires 230V wiring configuration
02093638	Requires 230V wiring configuration
02403695-2	Requires 230V wiring configuration
02093759-2	Requires 230V wiring configuration

Compatible Spa Brands (Verified)

• ♨️ Sundance Spas – Models manufactured before 07/11/2011
• ♨️ Jacuzzi Spas – Select models with matching specifications
• ♨️ Dynasty Spas – As replacement for 02093012-2510
• ♨️ Coleman / Maax Spas – As replacement for part 108897
• ♨️ Clearwater Spas – With matching pump specifications
• ♨️ Divine Spas – With matching pump specifications

💡 Compatibility Tip: To confirm this pump fits your spa, check your existing pump for the following: 48 frame, 1/15 HP, 1-1/2″ inlet and discharge, side discharge configuration. If your existing pump matches these specifications, the 48WTC0153C-I is a direct replacement.

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🛠️ Installation Requirements

Mounting

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

Plumbing Connections

Connection	Size
Suction (Inlet)	1-1/2″ MBT
Discharge	1-1/2″ MBT (Side Discharge)
Union Type	1-1/2″ Unions (2 included)
Thread Size	Approximately 2-3/8″ outside thread to outside thread

Wet End Rotation

The pump ships in a standard wet end orientation. If your existing plumbing requires a different orientation, the wet end can be easily rotated to match your spa’s plumbing layout. No special tools or adapters are required.

Barb Fitting Adapter

If your existing setup uses a barb fitting connected to vinyl tubing (commonly 3/8″ tubing), you may need a separate barb fitting adapter. This is not included with the pump and must be ordered separately.

Installation Notes

⚠️ Pump must be installed below water level (flooded suction) for proper operation.

⚠️ Never run the pump dry — operating without water causes immediate seal damage and voids the warranty.

⚠️ Ensure proper grounding and bonding per NEC requirements.

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

⚠️ This pump ships without an AMP cord. You will need to use your existing pump cord or purchase a new one. Refer to the included wiring diagram for proper connection.

⚠️ Verify your system voltage (115V or 230V) before wiring. The pump ships configured for 230V. Converting to 115V requires relocating internal wires per the included instructions.

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🔄 Maintenance Guide

Routine Maintenance

Task	Frequency	Notes
Check for leaks	Monthly	Inspect around mechanical seal and union connections
Inspect unions	Monthly	Tighten if needed — ensure O-rings are in good condition
Clean strainer/filter	As needed	Remove any debris that may restrict water flow
Check amperage draw	Annually	Should match rated specs (1.6A at 115V or 0.8A at 230V)
Inspect motor vents	Quarterly	Keep clear of debris to ensure proper cooling
Check mounting bolts/screws	Quarterly	Tighten if loose to minimize vibration
Verify plumbing connections	Quarterly	Check for drips, tighten unions as needed

Warning Signs – Replace Pump If:

• Unusual noise (grinding, screeching, or humming without running)
• Water leaking from the mechanical seal area
• Motor trips the circuit breaker repeatedly
• Noticeably reduced water flow
• Motor overheating or hot to the touch
• Pump fails to start or start intermittently

Seal Replacement

Specification	Detail
Seal Type	Mechanical Seal (Viton / Silicon Carbide / Graphite)
Replacement Seal	LX 48WTC Seal Kit (48WTC0153CI)

⚠️ Replace the mechanical seal at the first sign of water leakage from the seal area. Continuing to operate a pump with a leaking seal will cause motor damage.

Wet End Replacement

The wet end for this pump is available separately as part number 48WTC0153C-IWE. The wet end connects to 1-1/2″ inner diameter plumbing and works with the 48-frame LX circulation pump motor.

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🎯 Ideal Applications

Application	Suitability	Notes
♨️ Hot tub 24-hour circulation	Yes	Primary designed application — continuous filtration and heating circulation
♨️ Spa water circulation	Yes	Maintains water clarity and even temperature distribution
♨️ Spa heating circulation	Yes	Provides consistent flow through heating systems for efficient heating
🛁 Whirlpool bath circulation	Yes	Compatible with whirlpool bath systems requiring 1-1/2″ plumbing
♨️ Jet pump replacement	No	This is a low-power circulation pump — not designed for jet power

❓ Frequently Asked Questions

Q: What horsepower is this pump? A: The 48WTC0153C-I is rated at 1/15 HP with a 0.25 HP input power rating from the manufacturer (Guangdong Lingxiao). It is a circulation pump, not a jet pump, so it is designed for continuous low-power water circulation rather than high-pressure jet operation.

Q: Will this fit my hot tub? A: This pump has a 48-frame motor with 1-1/2″ MBT inlet and 1-1/2″ side discharge. It is a direct drop-in replacement for Aqua-Flo/Gecko Circ-Master CMHP, Waterway, and select Sundance/Jacuzzi circulation pumps with matching specifications. Check your existing pump’s frame type, port sizes, and discharge orientation to confirm compatibility.

Q: What voltage does this pump require? A: The 48WTC0153C-I is a dual-voltage pump that works with either 115V or 230V at 60 Hz. It ships from the factory configured for 230V. If your system runs on 115V, you must relocate internal wires per the included wiring diagram. All electrical work must be performed by a licensed electrician.

Q: Does this pump run on 115V or 230V? A: Both. The pump is convertible between 115V and 230V by repositioning internal wiring. At 115V, it draws 1.6 amps. At 230V, it draws 0.8 amps. Always verify your existing system voltage before ordering and wiring.

Q: Is this a single or dual speed pump? A: This is a single speed circulation pump operating at 1725 RPM. It is designed for continuous 24-hour operation at one consistent speed.

Q: What size are the ports? A: Both the suction (inlet) and discharge ports are 1-1/2″ MBT (approximately 2-3/8″ measuring from outside thread to outside thread). The discharge is a side discharge configuration.

Q: Does this pump come with a cord? A: No. The pump ships without an AMP cord. You will need to reuse your existing pump cord or purchase a new one separately. Refer to the included wiring diagram for proper connection.

Q: Does this pump include unions? A: Yes. The pump includes two 1-1/2″ unions. O-rings may be sold separately depending on the supply.

Q: Can I rotate the wet end to match my plumbing? A: Yes. The wet end can be rotated to match your existing spa plumbing orientation without special tools.

Q: What warranty is included? A: The pump includes a 1-year manufacturer warranty directly from Guangdong Lingxiao Pump Industry Co., Ltd. Contact Parts4Tubs for full warranty terms and support.

Q: How do I know if my circulation pump needs replacing? A: Signs include unusual noise (grinding or screeching), water leaking from the seal area, reduced water flow, the motor tripping the circuit breaker, or the motor overheating. If your spa displays a flow error code (such as FLO), a failing circulation pump is a common cause.

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 electrical installations.

Q: Is this pump the same as the Aqua-Flo Circ-Master CMHP? A: Yes. The LX 48WTC0153C-I is an identical match for the Aqua-Flo/Gecko Circ-Master CMHP circulation pump with the same specifications (1/15 HP, 115/230V, 1-speed, 48-frame, 1-1/2″ inlet and discharge). It is a direct drop-in replacement.

Q: Does this replace the Sundance 6500-907? A: Yes, for Sundance spas manufactured before 07/11/2011 that used the original 6500-907 (Aqua-Flo style) pump. For spas manufactured after 07/2011 using the newer 6000-907 pump, please verify plumbing compatibility as the plumbing may differ between the older and newer versions.

🏆 Why Choose the LX 48WTC0153C-I

• ✅ Proven Reliability – Manufactured by Lingxiao, a company with 46+ years of pump manufacturing expertise and a global leader in spa and pool pump production
• ✅ Direct Drop-In Replacement – Identical match for Aqua-Flo/Gecko CMHP, Waterway, and select Sundance circulation pumps — no modifications needed
• ✅ Dual Voltage Flexibility – Works with both 115V and 230V systems, making it compatible with virtually any spa electrical setup in the United States
• ✅ Energy-Efficient 24-Hour Operation – Low amperage draw (just 0.8A at 230V) means minimal impact on your electricity bill during continuous operation
• ✅ Quiet Operation – Anti-creep bearings with high-temperature lubricating oil and precision copper motor windings deliver smooth, near-silent performance
• ✅ Durable Construction – High-strength engineering plastics resist corrosion, and the Viton/silicon carbide/graphite mechanical seal provides long-lasting leak protection
• ✅ Complete with Unions – Ships with two 1-1/2″ unions so you can get installed faster
• ✅ 1-Year Manufacturer Warranty – Factory-backed warranty provides peace of mind

🤝 Why Buy from Parts4Tubs

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

✨ Summary

The LX Lingxiao 48WTC0153C-I is a compact, energy-efficient 1/15 HP single-speed circulation pump built for continuous 24-hour hot tub and spa operation. With dual-voltage capability (115V/230V), a 48-frame motor, 1-1/2″ MBT connections, and side discharge configuration, it serves as a direct drop-in replacement for Aqua-Flo/Gecko Circ-Master CMHP, Waterway, and select Sundance circulation pumps. Includes two unions, features a durable Viton mechanical seal, and is backed by a 1-year manufacturer warranty. Order today from Parts4Tubs for fast 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.

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.