001F88C Gemini Plus II Pump Replacement.

The 001F88C Gemini Plus II Pump Replacement isn’t a generic swap—it’s a precision, exact-spec solution designed to restore the distinctive feel of your discontinued Gemini Plus II. If you remember the way your whirlpool bath delivered strong, steady jets and dependable performance, this replacement makes it feel like you never skipped a beat.

Exact-spec replacement that preserves your spa’s personality

Built to the same footprint and electrical characteristics as the original Gemini Plus II, this pump preserves the jet layout, flow dynamics, and overall spa persona. You get the same, reliable hydrotherapy experience without the guesswork of aftermarket substitutes.

Power, performance, and flexible control

The 120V motor delivers robust jet action you can feel, delivering a spa-like massage in the comfort of home. For those who want customizable intensity, pair this pump with a compatible control system sold separately to unlock variable-speed operation. Without a control, the pump runs at a single speed to ensure dependable performance right out of the box.

What makes this replacement stand out

• Exact-spec fit: precisely engineered to align with Gemini Plus II dimensions and performance for a seamless installation.
• Variable-speed option (sold separately): tailor flow rates and jet intensity to your mood and needs.
• Powerful and reliable: 120V motor provides consistent, high-performance jet delivery for a spa-like experience at home.
• Includes essential install components: free pump union and gasket, plus new tubing for the air switch—extras many sellers omit.
• Plug-and-play installation: designed to integrate with minimal downtime and without major rewiring.

What’s included and what it means for you

• 001F88C Gemini Plus II Pump Replacement unit matched to the original’s specs
• Free pump union with gasket for a secure, leak-free seal
• New tubing for the air switch to ensure reliable actuator response

Compatibility and use cases

This pump is compatible with a wide range of ITT Marlow variable speed configurations and Gemini Plus II pump variants. If your spa previously relied on a Gemini Plus II or an ITT Marlow setup listed among common compatible models, this replacement slots in with minimal rewiring or custom parts. It’s ideal for restoring your whirlpool bath’s invigorating jet massage when the original unit is discontinued or unavailable.

Installation tips and practical insights

1. Power should be fully disconnected and the spa drained before starting.
2. Remove the old pump and install the 001F88C unit in its place.
3. Attach the included union and gasket for a watertight seal.
4. Connect the air-switch tubing and verify all hose and electrical connections are secure.
5. To enable variable-speed operation, pair with a compatible control system; otherwise, the pump will operate at a reliable single speed.

Who benefits most

Whirlpool bath owners whose original Gemini Plus II pump is discontinued but still crave the exact feel and performance of the original jet system. If you want the same jet layout, flow dynamics, and spa persona without trial-and-error fittings, this replacement is engineered for you.