This item has been discontinued by the manufacturer and is no longer available.
This Nimar O-Ring Set contains all the user replaceable o-rings for Nimar 303D housings for Nikon cameras. 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.