Protecting the Gemini Head Where It’s Most Vulnerable
The Gemini head is one of the most exposed parts of the unit when the breathing loop is removed. Critical O-rings, sealing surfaces, and the exposed O2 cells on the right-hand head are all at risk during travel, storage, and long surface intervals.
This Gemini Head Protective Cover was designed to shield those components from impact, abrasion, and contamination - especially when the unit is packed alongside other gear in bins, cases, or crates.
Purpose-Built Protection
Machined from solid Delrin, the cover is durable without being bulky. It’s designed to slip over the head and stay put, providing a physical barrier between sensitive components and the outside world.
- Protects critical O-rings and sealing surfaces.
- Shields exposed O2 cells from bumps and contamination.
- Helps prevent dust, grit, and debris from entering the head.
As a bonus, it keeps bugs and other critters out — something anyone who stores gear in a garage, shed, or on a boat will appreciate.
Designed to Fit Real-World Setups
The cover is designed to work with the line lock installed, so it can be used without changing your normal configuration. There’s no need to remove hardware or adjust your setup just to protect the head.
It’s well suited for:
- Travel and transport
- Long-term storage
- Packing the unit in gear boxes
- Long surface intervals with the loop removed
A Perfect Companion - Head to Loop Connection Cap
For complete head protection, this cover pairs naturally with the Fathom MK/Gemini Head to Loop Connection Cap.
While the Head Protective Cover shields the outside of the head, the Connection Cap protects the fine, sensitive threads where the breathing loop attaches - and keeps grit and debris out of the threaded interface.
Used together, the two provide full protection when the loop is removed: the cap covers and vents the threads, and the head cover protects O-rings, sealing surfaces, and O₂ cells.
Additional Information
- This is not an official Fathom accessory.
- Designed in California, made in China.
Where to Find It
The Gemini Head Protective Cover is available at RUGGED SCUBA and ships from the U.S.
Photos and short videos showing fit and use are available on the product page and Instagram.