O-Ring for DIN First Stage Regulator oxygen 00 mm Silicone free Yes

00 mm Silicone free Yes Sizes Size 5 (XXS) - Size 12 (XXXL)  EN 388:2003 4131  EN 388:2016 + A1:2018 4131A

Unmatched field of vision

5 x 12 in (16

The battery is not covered by the warranty

upper forearms and pocket area are covered with the military-grade 500D Cordura

O-Ring for DIN First Stage Regulator oxygen 00 mm Silicone free YesAuthentic Apeks branded O ring designed specifically for use with Apeks DIN (also known as G 5 8) connectors. Might also work with other regulators (check sizes). Carries the Apeks individual part number AP1166, as detailed in their service kit. Made from EPDM elastomer, conforming to ISO BS3601 111 size specifications, equivalent to SAE AS568 111. This particular O ring size is optimized for the slightly narrower grooves found on Apeks brand DIN