R100-CC ITT Marlow Gemini Plus 0005F00CC Replace and Upgrade

The R100-CC ITT Marlow Gemini Plus Retrofit Kit from Whirly Bros is the smart, economical way to replace and upgrade your ITT Marlow Gemini Plus spa or whirlpool. When your Gemini Plus system is discontinued or the keypad isn’t available, this complete retrofit breathes modern life into your tub without the cost or downtime of a full replacement. Specifically designed as a replacement for the ITT MARLOW GEMINI PLUS 0005F00CC, it delivers dependable performance with a straightforward, plug‑in installation.

Key benefits at a glance

• Plug‑in, variable‑speed control — A 120V, 8.5A variable‑speed pump paired with a 120V control box powers your jets with real flexibility, from a gentle soak to a deep tissue massage.
• Three precise speeds — High, Medium, and Low let you dial in the exact jet intensity for any mood or need.
• Floating wireless remote — Waterproof and wireless, so you can start, stop, adjust speed, or set the 30‑minute timer from anywhere in the room.
• Deck‑friendly design — The remote stays off the tub deck, eliminating drilling or alterations to your finished surface.
• Air button control option — A white push button with 6 ft of tubing provides a tactile alternative to the remote, offering quick adjustments without reaching for the control box.
• No deck modifications — Install once and enjoy, with no need to cut into the deck or remodel the surrounding area.
• Unions and seals included — Two pump unions are provided to align with your existing plumbing and simplify the seal replacement during upgrade.
• Consistent, powerful flow — The upgraded pump delivers robust flow across all speeds to reliably drive your massage jets.
• Designed for compatibility — Built as a retrofit for the ITT Marlow Gemini Plus family, reviving older tubs with a modern control interface.

Why this upgrade matters

If your original control box or keypad is discontinued or no longer available, the R100-CC retrofit kit restores full functionality with a contemporary control experience. It’s an energy‑conscious, cost‑effective path to extend the life of your spa or whirlpool without the disruption and expense of a brand‑new tub.

Who should consider this upgrade

Ideal for owners of legacy ITT Marlow Gemini Plus spas and jetted tubs who want modern control, flexible jet settings, and a simpler, more reliable way to manage spa sessions. It’s particularly appealing when a full replacement is impractical or unnecessary, and when you value a simple, out‑of‑the‑box installation.

How it works and practical tips

Once installed, you’ll pair the waterproof floating remote to the control system to start and adjust jet speeds from across the room. Use High for an invigorating massage, Medium for balanced relief, or Low for a gentler soak. The 30‑minute timer helps you manage sessions without keeping constant watch, while the optional air button gives a tactile control method if you prefer not to use the remote.

Maintenance is straightforward: keep the toolbox simple with the included unions and seals, ensure the remote battery remains fresh, and store the air button tubing out of direct sunlight to prevent wear. If you’re replacing seals or upgrading from an older pump, the included hardware simplifies alignment with your existing plumbing.

In short, the R100-CC Retrofit Kit offers a durable, user‑friendly upgrade path that restores full spa functionality, delivers customizable jet experiences, and preserves the look and feel of your tub while modernizing its control interface.