Check the listing for details. Captain O-Ring Save-A-Dive 20pc Scuba O-Ring Kit (Polyurethane). Condition: New. Listed at 18.69 USD. Captain O-Ring Save-A-Dive 20pc Scuba O-Ring Kit (Polyurethane) Product Features: 20 Polyurethane O-Rings (90 Durometer) Includes sizes 003, 010, 011, 014, 112, 214 Great item to keep in your dive bag Manufactured and Warrantied by Captain O-Ring LLC The Captain O-Ring Save-A-Dive O-Ring kit includes 20 of the most common o-rings found in scuba equipment (Tank Valves, Hoses, Regulators, Cameras, etc). Kit includes the following sizes: 003 (x4), 010 (x3), 011 (x3), 014 (x5), 112 (x4), 214 (x1). All parts are 90 durometer polyurethane material. Polyurethane is compatible with Nitrox and compressed air, as well as all common greases and lubricants used in SCUBA/diving equipment. Polyurethane is a premium material with superior abrasion resistance to common o-ring materials. The Captain O-Ring Deluxe 20pc Polyurethane Save-A-Dive O-Ring kit is a perfect item to keep in your dive bag to be prepared for the moment when an o-ring unexpectedly fails. Don't get caught on a dive without an o-ring.