Sterling Seal & Supply 7001 is a compressed non-asbestos sheet gasket material Produced from a combination of aramid and other synthetic fibers and bonded with nitrile rubber (NBR) It is manufactured through the hot calendar process under rigorous quality control standards that are registered under ISO-9001 certification Sterling Seal & Supply is suitable for service handling the following general media categories: Water, Diluted alkalis, Industrial gases, General chemicals Commonly used in equipment such as valves and pumps. Actual size: 29 1/2" x 31 1/2"