Dive 1st Aid FAK333 AED and Oxygen Medical Kit Neck Clamp Face Port 1 510 481 O ring 525 630 Face Port 1 510 481 O ring 1 510 490 O ring 1 510 509 Head Harness 1 510 550 Oral Nasal Valve 1 510 561 Valve Balanced 2 210 060 Valve Seat 1 220 056 Lever Bearing Clip 1 310 003 O ring 4 510 008 O ring 3 510 010 O ring 3 510 012 O ring 2 510 013 O ring 1 510 014 O ring 2 510 015 O ring 3 510 017 O ring 2 510 019 O ring 2 510 029 O ring 2 510 260 O ring The Dive 1st Aid AED and Oxygen Medical Kit comes complete with an AED and Jumbo D oxygen tank providing approximately 40 minutes of emergency oxygen at 15lpm this kit is completely protected from any environment