Yoke Face O-Rings - Urethane

Yoke Face O-Rings - Urethane (6 to a pack)       This is the o-ring that seals your yoke regulator to the tank.  This is the skinny version used on most new tanks today.  The other version is the same as the standard din o-ring listed later on.   High Performance Urethane O-Rings are used for heavy duty applications.  They have a 90 Dura meter with outstanding wear and tear resistance. Urethane o-rings have very low compression set ensuring maximum service life.   What this all means to the diver is that they last longer and take more abuse