ITT Marlow Gemini Plus R125A-C (0010F00C) 1.25 HP Whirlpool Tub Pump Replacement

If your original ITT Marlow Gemini Plus R125A-C (0010F00C) whirlpool bathtub pump has become noisy, seized, started leaking, or stopped working, there's no need to replace your entire bathtub. Whirly Bros offers a premium replacement pump designed to restore the powerful hydrotherapy performance your whirlpool tub was built to deliver.

This 1.25 HP whirlpool tub pump is engineered for dependable operation, quiet performance, and long service life. Whether you're a homeowner restoring your whirlpool bathtub or a service technician repairing a customer's system, this replacement provides the performance and reliability you expect.

Unlike many online retailers, Whirly Bros specializes exclusively in whirlpool bathtub parts and retrofit solutions. We have years of hands-on experience replacing discontinued ITT Marlow, Gemini Plus, Hydro Air, Balboa, NuWhirl Systems, and many other OEM bath components. If you're unsure whether this is the correct replacement, simply contact us before ordering—we're happy to help identify the proper pump.

Why Replace Your R125A-C Pump?

Over time, whirlpool tub pumps wear from normal use. Common signs that your original ITT Marlow pump should be replaced include:

• Loud bearing noise
• Water leaking from the pump seal
• Pump hums but won't start
• Weak or reduced jet pressure
• Pump trips the GFCI breaker
• Motor overheats
• Frozen motor shaft
• Excessive vibration during operation

Replacing a worn pump restores proper water circulation, stronger massage performance, and helps extend the life of your whirlpool bathtub.

Product Features

• Premium replacement for ITT Marlow Gemini Plus R125A-C
• Replaces OEM Part Number 0010F00C
• 1.25 HP motor
• Quiet, smooth operation
• Heavy-duty construction
• Designed for residential whirlpool bathtubs
• Reliable hydrotherapy performance
• Built for long service life
• Easy replacement for compatible systems
• Excellent choice for homeowners and professional technicians

Compatible With Many Whirlpool Bathtub Manufacturers

This style of pump has been used by numerous whirlpool bathtub manufacturers, including many models from:

• Aqua Glass
• Jason International
• Hydro Systems
• MTI Baths
• Lasco
• Pearl Baths
• MAAX
• American Standard
• Certain Kohler whirlpool tubs
• Many custom whirlpool bath manufacturers

Compatibility varies by model. If you're unsure, contact Whirly Bros before ordering.

Why Buy From Whirly Bros?

Choosing the correct whirlpool pump is more than matching horsepower. Our team has extensive experience working directly with OEM whirlpool bath manufacturers and understands the differences between discontinued pump configurations, plumbing layouts, and retrofit options.

When you purchase from Whirly Bros, you receive:

• Expert fitment assistance
• Fast order processing
• Same-day shipping on most in-stock orders
• Free U.S. shipping on qualifying orders
• Friendly technical support before and after your purchase
• Access to hard-to-find whirlpool bathtub replacement parts

Our goal is simple: help you repair your bathtub correctly the first time.

Expert Tip

Many ITT Marlow and Gemini Plus pumps look nearly identical but use different wet-end orientations, plumbing connections, or motor specifications. Before ordering, compare your pump label and plumbing layout carefully. If you need assistance, send Whirly Bros photos of your existing pump and we'll help verify the correct replacement.

Frequently Asked Questions

Is this a replacement for the ITT Marlow R125A-C?

Yes. This pump is designed as a replacement for the ITT Marlow Gemini Plus R125A-C (0010F00C) used in many residential whirlpool bathtubs.

What does 1.25 HP mean?

Horsepower refers to the motor's output power. Matching the original horsepower helps maintain the jet performance your whirlpool bathtub was designed to provide.

Can I replace only the motor?

In some cases, yes. However, if the wet end, shaft seal, or bearings are damaged, replacing the complete pump is often the most reliable long-term solution.

Will this fit every whirlpool tub?

No. Compatibility depends on plumbing orientation, voltage, union size, and the original equipment. Contact Whirly Bros if you're unsure before ordering.

Why is my whirlpool pump leaking?

Leaks commonly occur because of worn shaft seals, cracked wet ends, or aging pump housings. Replacing the complete pump is often the most dependable repair.

Do you help identify replacement parts?

Absolutely. Our team specializes in helping homeowners and service professionals identify discontinued whirlpool bathtub pumps, controls, heaters, blowers, and other hard-to-find components.