This Amphibico ACOR0111 O-Ring Kit is a replacement o-ring for the Dive Buddy Plus for the DCR-TRV11, TRV17, TRV18, TRV20, TRV25, TRV27, TRV30, TRV33, TRV50 and TRV80 housings. The o-ring, resembling a thick rubber band, is designed to establish a watertight seal when going underwater.
Manufactured to precision tolerances required to hold a pressure seal on your housing and made of elastomeric material, it provides the means by which a watertight seal is formed.