O-rings are one of the simplest yet most engineered precise and useful seal designs ever developed. Sizes are specified by the inside diameter and the cross section diameter (thickness). These tough and pliable Buna-Nitrile Rubber (NBR) O-Rings will help provide long-term use for your plumbing needs..
It is extra wide for aggressive holding power.. Frost King extra-wide double-faced window insulation mounting tape is designed for use with Frost King window insulation film.