0036F88C Gemini Plus II Pump Replacement
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Reclaim the full, rejuvenating power of your whirlpool with the 0036F88C Gemini Plus II Pump Replacement. This exact-fit solution mirrors the original Gemini Plus II pump specifications, delivering reliable performance without guesswork. If your bath’s jets have lost their punch or you’re working with a discontinued pump, this replacement makes it easy to restore that classic spa experience with modern reliability.
Why this replacement stands out
- Exact-fit, same footprint and electrical characteristics—designed to slide into your existing plumbing and electrical setup without modification, preserving your tub’s original balance of flow and pressure.
- Variable speed capability for a tailor-made massage—adjust flow rates and jet intensity to suit mood, size of tub, or therapeutic need. Note: a compatible control system is sold separately; without a control, the pump runs as a single-speed unit, with the option to upgrade later.
- Modern reliability with easy maintenance—built to match the discontinued Gemini Plus II pump, ensuring long-term availability of parts and simple future servicing.
- Solid performance—a 120V, 8.5-amp motor delivers steady, powerful jet action for immersive hydrotherapy and consistent spa sessions.
- Leak-free installation—includes 2 pump unions with gaskets for a secure, leak-free seal and straightforward setup.
What’s included
- 0036F88C Gemini Plus II Pump replacement
- 2 pump unions with gaskets
Installation and compatibility
Engineered for hassle-free installation into your existing whirlpool plumbing, this pump gets your tub back online quickly with minimal downtime. It’s designed to align with ITT Marlow Variable Speed Pumps and Gemini Plus II configurations, covering a wide range of models such as:
- 0059F88C, 0060F88C
- NR4A-C, 1-00-0221, 34-109-1040
- A014E88C, 0014F88C, 0045E88C
- 0065F88CC, 5151-211, 0059F88C (no air switch)
- NL74620DB, Hydro Air NRU2A-C, NRU4-C
- 006OF88C, R125A-C, R150VS11C/0072E00C, and more
If your pump configuration matches these families, the 0036F88C is a strong, compatible choice. For homeowners with a discontinued ITT Marlow variable speed pump or a Gemini Plus II setup, this replacement restores the original jet-powered vitality you remember—and does so with readily available parts and support.
Who this is for
- Homeowners restoring a whirlpool bath to its former jet-powered vitality
- Service technicians needing a ready-to-install, genuine replacement that matches the original specs
- Anyone with a Gemini Plus II or ITT Marlow variable speed configuration seeking a reliable, long-lasting pump
Values and support you can count on
Whirly Bros backs this replacement with quick, reliable service. Enjoy same-day shipping and free U.S. shipping, so your tub spends less time out of service. Our knowledgeable team is ready to help you choose the right replacement and troubleshoot installation questions, ensuring you’re back to a relaxing, jet-powered soak as soon as possible.
Order the 0036F88C Gemini Plus II Pump Replacement today and restore your whirlpool’s invigorating massage, power, and reliability—so you can unwind with confidence, night after night.

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Prompt replies to online order questions. A fair price for their products as well as free shipping and no tax!
Thank you for your positive feedback! We're glad you’re satisfied with our prompt service and affordable prices. We appreciate your support!
The guys at whirly bros are great to deal with. Very informative and honest. They went out of their way to send me pics of better pumps and explained what I would have to do to upgrade. I chose the plug and play option and it was exactly what I needed.
We try our best.
Thanks
Jesse
The pump was an exact fit to the one we took out. No plumbing changes needed. Customer service was awesome when we called with questions prior to ordering. Quick delivery. Thanks so much!
Thanks, we do our best, we know how important it is to make sure you are getting the correct part. Appreciate your business and review even more.
Best regards
Jesse Paredes
I received the pump in good time. Had a little trouble getting it to work. The owner talked me through it and it work perfectly after I got it installed. Only question I have is that it has a faint smell when in operation. I'm thinking cuc it's new. If still persists after time I might give me. Whirly a call back. He has been great to deal with. Very friendly and knowledgeable. Thanks very much. Kevin Wiest
Thanks Kevin, its new so that smell can be expected. We trust that this pump will work for many many years to come.
Best price on this pump and I looked everywhere. Fast shipping, they aren't kidding when they say same day shipping. I will continue to use them for pumps and parts.
Thanks for the kind words. We just know that nobody likes waiting and especially now a days everything's go-go-go. So we move quickly and ship same day, we make sure we have all parts ready to ship same day.
We appreciate your business 🙏.