O-ring Holder Tank with Picker Blue

Nautilus O-Ring Tank Holder – Small Storage, Big Peace of Mind.

Keep your spare O-rings exactly where you need them with the Nautilus O-Ring Tank Holder—a smart, compact accessory that attaches directly to your cylinder valve for quick access when it matters most. Whether you’re swapping tanks between dives or helping a buddy in need, this simple solution ensures you’re never left scrambling for a critical seal.

Made from durable, lightweight plastic, the holder is designed to house multiple spare O-rings safely and securely. It screws into the DIN or yoke valve handwheel and features an easy-to-open cap with internal storage, protecting your O-rings from salt, sun, and grit.

Key Features:

Convenient O-Ring Storage – Holds multiple spares right on your tank for fast, easy access

Universal Fit – Screws into most DIN or Yoke valve handwheels with standard threading

Durable Plastic Construction – Lightweight, corrosion-resistant, and built for repeated use

Sealed Cap Design – Keeps O-rings clean, dry, and protected from UV and debris

Essential for Every Save-a-Dive Kit – Perfect for instructors, dive pros, and well-prepared recreational divers

Because something as small as an O-ring shouldn’t be the reason you miss a dive, the Nautilus O-Ring Tank Holder ensures you’re always prepared.