OMS Divers' O-Ring Kit OMS Wings & Backplates Easily and quickly adaptable to

Easily and quickly adaptable to nearly any body shape

One high-pressure port: For pressure gauge

Maximum extension of 109

Unrestricted airflow for natural breathing

You get red

OMS Divers' O-Ring Kit OMS Wings & Backplates Easily and quickly adaptable toIn 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 two 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