YS-D2/YS-D1/YS-01/YS-02/YS-90/YS-110/YS-27/YS-30 SERIES O-RING SET

The o-ring resembles a thick rubber band and is designed to establish a watertight seal when going underwater. Made of elastomeric material and manufactured to the precision tolerances required to hold a pressure seal on your housing, it provides the means by which a watertight seal is formed. This Sea & Sea o-ring set is for the YS-01, YS-02, YS-90, YS-110, YS-110a YS-27, and YS-30 strobes.