⚙️ CMP Ninja Bath Pump 27210-060-900 – 0.5 HP Single-Speed Whirlpool Bath Pump

Compact, quiet, and energy-efficient jet power for your whirlpool bathtub

💧 Product Overview

The CMP (Custom Molded Products) Ninja 27210-060-900 is a 0.5 HP single-speed whirlpool bath pump designed specifically for the North American market. Built by one of the industry’s most respected manufacturers, this compact pump delivers reliable jet performance while maintaining whisper-quiet operation — making it ideal for residential whirlpool bathtub installations.

Drawing just 6.3 amps at 115V, this pump plugs into a standard household outlet and comes ready to install with a 5-foot NEMA power cord, built-in air switch, locking nut for air button tubing, and rubber mounting pads for vibration reduction. The Ninja platform has been trusted by major tub manufacturers including Lasco and many others for years, and serves as a direct replacement for the popular Balboa Vico WOW bath pump line.

The pump features bottom suction with center discharge, 1-1/2″ male buttress thread (MBT) connections, and a compact footless design that fits easily within tight whirlpool bathtub enclosures. UL and CSA listed for safety and peace of mind.

✨ Key Features

✅ 0.5 HP Motor – Half-horsepower single-speed motor rated at 6.3 amps for efficient jet performance

✅ 115V / 60Hz Operation – Plugs into standard household outlet — no special wiring required

✅ Built-In Air Switch – Integrated pneumatic on/off switch for convenient tub-side control

✅ 5-Foot NEMA Power Cord – Extra-long 3-prong grounded cord provides flexible installation positioning

✅ 1-1/2″ MBT Connections – Male buttress thread suction and discharge ports for industry-standard plumbing compatibility

✅ Compact Footless Design – Space-saving form factor fits easily within whirlpool bathtub enclosures

✅ Thermal Protected Motor – Built-in thermal overload protection prevents motor damage from overheating

✅ IPX5 Enclosure – Water-resistant motor housing meets European standards for splash protection

✅ Rubber Mounting Pads – Included vibration-dampening pads reduce noise and prevent surface damage

✅ UL and CSA Listed – Dual safety certification for North American residential installations

✅ Self-Draining Volute – Promotes hygienic operation by preventing stagnant water buildup

✅ Locking Nut for Air Tubing – Secure connection point for air button tubing included

🔩 Technical specifications

📐 Dimensions

Measurement	Value
Length	13.64 inches (13-5/8″)
Width	5.35 inches
Discharge Height	6.75 inches (6-7/8″)
Overall Height	7.28 inches (7-1/4″)
Motor Box Width	7-3/16 inches

🔧 Parts and fittings for this

🔗 Compatibility Guide

This Pump:

📍 Frame: Footless (4-bolt volute mounting) 📍 Suction: 1-1/2″ MBT — Bottom 📍 Discharge: 1-1/2″ MBT — Center 📍 Cord: 5-foot NEMA plug

Direct Replacement For:

This CMP Ninja 27210-060-900 is a verified direct replacement for the following pumps:

Original Pump	Part Number
Balboa Vico WOW	1010031
Balboa Vico WOW	1050031
Pentair / Balboa	1010115 / PEN1010115
Hydro Air	A006E88C
Waterway Genesis	321FF10-0150 (matching amperage)
Putt Universal	PUWWSCAS598R
Putt Universal	PUWWSCAS798R
Putt Universal	PUWWSCAS1098R

Additional Cross-Reference Numbers: 27210-060, 27210060900, 388621, 34-605-1020

Ninja vs. Nexxus: CMP has renamed the Ninja line to Nexxus. The Nexxus version (suffix -000, e.g., 27210-060-000) is EU compliant, while the Ninja version (suffix -900) is the standard North American model. Specifications are identical — only the compliance certification differs.

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⚠️ Important Union Compatibility Notice

Unions are sold separately. This pump’s MBT connections require CMP-specific unions:

✅ Compatible Union: CMP Nexxus/Ninja Union 1-1/2″ Slip — Part 21021-100-000

❌ DO NOT USE standard pump union 52271000 — it will NOT fit the CMP Ninja/Nexxus pump

Additional compatible union options include the 0602-15B (1-1/2″ FBT union).

🛠️ Installation Requirements

Mounting:

Requirement	Specification
Mounting Position	Horizontal
Base	Solid, level surface
Vibration Dampening	Included rubber mounting pads
Ventilation	Ensure adequate airflow around motor
Access	Allow clearance for maintenance and union access

Plumbing:

Connection	Size
Suction	1-1/2″ MBT (bottom)
Discharge	1-1/2″ MBT (center)
Union Type	CMP 21021-100-000 or 0602-15B (sold separately)

Installation Notes:

⚠️ Pump must be installed below water level (flooded suction) for proper operation ⚠️ Never run pump dry — causes seal and motor damage ⚠️ Ensure proper grounding and bonding per NEC requirements ⚠️ GFCI protection is required by code ⚠️ This pump is equipped with an air switch — if the motor does not start upon plugging in, the air switch may be in the OFF position. Press the air button to activate. ⚠️ Air button and air tubing are sold separately (tubing: part 63000)

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🔧 Maintenance Guide

Routine Maintenance:

Task	Frequency	Notes
Check for leaks	Monthly	Around seal plate and union connections
Inspect unions	Monthly	Tighten if needed
Check air switch function	Monthly	Ensure reliable on/off operation
Inspect motor vents	Quarterly	Keep clear of debris for proper cooling
Check mounting pads	Quarterly	Replace if worn or compressed
Verify amperage	Annually	Should read approximately 6.3A

Warning Signs — Replace Pump If:

• Unusual noise (grinding, screeching, or humming without starting)
• Water leaking from seal area
• Motor trips breaker repeatedly
• Reduced water flow or weak jet pressure
• Motor overheating or burning smell
• Air switch no longer activates motor

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🎛️ CMP Ninja Family Comparison

The CMP Ninja/Nexxus bath pump is available in multiple amperage/horsepower configurations sharing the same compact platform:

Model	Amperage	HP	Status
27210-060-900	6.3A	0.5 HP	✅ Current — THIS PUMP
27210-080-900/000	7.2A	0.75 HP	✅ Current
27210-090-900/000	8.0A	1.0 HP	✅ Current
27210-110-900/000	10.0A	1.0 HP	✅ Current
27210-130-900/000	12.0A	1.5 HP	❌ Discontinued

All models share the same physical platform, 1-1/2″ MBT connections, built-in air switch, NEMA cord, and footless design. Choose based on your tub’s jet count and desired jet pressure.

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🛁 Ideal Applications

Application	Suitability	Notes
🛁 Whirlpool bathtub (4-6 jets)	✅ Yes	Ideal size for standard whirlpool baths
🛁 Replacement for Vico WOW 0.5 HP	✅ Yes	Direct replacement — same connections and mounting
♨️ Hot tub jet pump	❌ No	Designed for bath applications, not hot tub spa use
♨️ Spa circulation pump	❌ No	Not a circulation pump — this is a jet pump

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🔩 Optional Accessories

Accessory	Part Number	Description
Pump Union 1-1/2″ Slip	21021-100-000	CMP Ninja/Nexxus specific union (sold in pairs recommended)
Pump Union 1-1/2″ FBT	0602-15B	Alternative compatible union
Union O-Ring	O-49	Generic 1-1/2″ o-ring for pump union
Plastic Pump Stand	27265-204-000	CMP Ninja/Nexxus mounting stand
Fiberglass Pump Stand	42009-100-000	Heavy-duty fiberglass mounting stand
Pump Pads	27210-000-100	Replacement rubber mounting pads
Air Tubing	63000	1/8″ ID x 1/4″ OD, 10-foot roll
Pump Tee	21014-000-000	1″ x 1″ x 1-1/2″ spigot tee fitting

❓ Frequently Asked Questions

Q: What horsepower is this pump? A: The CMP Ninja 27210-060-900 is a 0.5 HP (1/2 horsepower) single-speed bath pump drawing 6.3 amps at 115V.

Q: Will this replace my Balboa Vico WOW pump? A: Yes. The CMP Ninja 27210-060-900 is a direct replacement for the Vico WOW 1010031 and 1050031 bath pumps. It has the same 1-1/2″ MBT connections, bottom suction, and center discharge configuration.

Q: What voltage does this pump require? A: 115V / 60Hz — it plugs into a standard household outlet using the included 5-foot NEMA cord. No special wiring is needed.

Q: Does this pump come with an air switch? A: Yes, the air switch is built into the pump. You will need to purchase the air button and air tubing separately. If the motor does not start when plugged in, press the air button — the switch may be in the OFF position.

Q: Are unions included? A: No, unions are sold separately. Use CMP part 21021-100-000 (1-1/2″ slip) or 0602-15B. Important: do NOT use standard pump union 52271000 — it is not compatible with the CMP Ninja/Nexxus pump.

Q: What is the difference between Ninja and Nexxus? A: CMP renamed the Ninja line to Nexxus. Models ending in -900 (Ninja) are the standard North American version. Models ending in -000 (Nexxus) are EU compliant. Specifications are identical for both versions.

Q: What size are the ports? A: Both suction and discharge ports are 1-1/2″ male buttress thread (MBT) with a 2-7/16″ outer diameter.

Q: How do I know what size Ninja pump I need? A: Choose based on your jet count: 4-6 jets typically need the 6.3A (0.5 HP) model, 6-8 jets the 7.2A model, and 8+ jets the 8.0A or 10.0A models. Match the amperage of your existing pump for direct replacement.

Q: Do I need a GFCI breaker? A: Yes, GFCI protection is required by the National Electrical Code (NEC) for all whirlpool bath and hot tub installations.

Q: How long is the power cord? A: The CMP Ninja comes with a 5-foot (60-inch) NEMA 3-prong grounded power cord — longer than many competing bath pumps for greater installation flexibility.

Q: Can this pump be used in a hot tub? A: No, this is a whirlpool bath pump designed for bathtub installations. It is not suitable for outdoor hot tub or spa applications.

🏆 Why Choose the CMP Ninja 27210-060-900

✅ Proven Reliability – Trusted by major tub manufacturers including Lasco for years of dependable service

✅ Compact Design – Footless, space-saving form factor fits within the tightest bathtub enclosures

✅ Ultra-Quiet Operation – Engineered for minimal noise during whirlpool operation

✅ Complete Package – Comes with NEMA cord, built-in air switch, air tubing locking nut, and rubber mounting pads

✅ Broad Compatibility – Direct replacement for Vico WOW, Waterway Genesis, and other popular bath pumps

✅ Dual Safety Certified – Both UL and CSA listed for North American residential installations

✅ IPX5 Water Resistance – Motor enclosure rated for splash protection in wet environments

✅ Energy Efficient – Low 6.3A draw operates on standard 15A household circuit

🤝 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

✅ Compatible unions and accessories available

✅ Dedicated customer service team

✨ Summary

The CMP Ninja 27210-060-900 is a compact, reliable 0.5 HP single-speed whirlpool bath pump operating at 115V/6.3A. Featuring a built-in air switch, 5-foot NEMA cord, 1-1/2″ MBT connections, and footless design, it serves as a direct replacement for Balboa Vico WOW and other popular bath pumps. UL and CSA listed with IPX5 water resistance. Available in multiple amperage configurations for different jet counts. Order today from Parts4Tubs for fast US shipping.

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.