O2 Regulator Washer/Seal Brass-viton
Because of the potential volatile nature of high pressure oxygen it is extremely important to use the proper seal between the high pressure cylinder and the regulator. Don't be fooled into using aluminum washers! These deluxe brass-viton washers offer the safest the option for this sealing surface. It is recommended that you replace your washer every 6 months. Always inspect your regulator washer seal to make sure it is not damaged before use.