This Amphibico ACOR0122 O-Ring Kit is a replacement o-ring for the Amphibico Ultra Pro Power Pack (LAPPHIDB). 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.