This AquaTech Replacement O-Ring Set for AquaTech Dolphin Sport Housing Set contains all the user replaceable O-Rings for the AquaTech Delphin Sport Housings. The O-Ring kit contains the rear main O-Ring and a Port Based Compression Seal O-Ring which is for the front of the Sport Housing.
Manufactured to precision tolerances required to hold a pressure seal on your housing and made of silicon material, it provides the means by which a watertight seal is formed. Silicon o-rings are easy to maintain. It is important to keep them free of dirt and sand, but O-Ring grease is not required.