OMS Divers' O-Ring Kit

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In a compartmentalised case, the OMS Divers’ O-Ring Kit contains 16 of the most common O-rings (over 200 O-rings), from HP swivel to tank neck O-rings. The O-Ring Kit comes with tw o o-ring picks and an o-ring size key. NBR (Nitrile): Standard for most scuba applications. Viton (FKM): Highly resistant to chemicals and heat; better for high-percentage Nitrox or Oxygen-serviced systems. Less degradation than standard Nitrile. 70 vs 90 (Durometer): This is the hardness. 90 is harder/stiffer (often used for high-pressure tank valves), while 70 is softer and more flexible (common for dynamic seals). If there is anything you need but cannot find on our site, contact us directly, and we’ll help you find it. Show more