The design of the top lid makes it ideal to use in conjunction with heavy duty gloves and still evacuate proper amount of gas during ascent. All SI TECH Exhaust Valves has built in safety features that ensure no gas to be evacuated by accident while on surface. The construction of the filter lid makes the Argo Exhaust Valve suitable to use in conjunction with all common undergarments.
- High flow
- Ratchet action
- Available with large/small guide ridge
- Anti-friction washer