.375'' (3/8") Buna-N Cord, 90A Durometer, 0.375" Thickness, 100' Piece, Black air Also available o-ring kit by

Also available o-ring kit by itself

A-Quality does not swell when exposed to cleaners

Use lube or light tool oil to prolong life of o-rings

10 pieces of Professor Foam brand o-rings

.375'' (3/8") Buna-N Cord, 90A Durometer, 0.375" Thickness, 100' Piece, Black air Also available o-ring kit bysame as 9. 5 mm thick Buna O Ring Cord, 90A Durometer, Round, Black O Ring Cord made of Buna N (Nitrile, NBR) for use with a variety of fluids and hydrocarbons Durometer (hardness) of 90A For use across a wide temperature range from 40 degrees F ( 40 degrees C) to 212 degrees F (100 degrees C) Made in the U. S. A. Available in various cross sections and lengths