61 LINEBACKER NSF CERTIFIED SEALING GASKET

Gasket material in sheets for use in flange isolation pipe connection joints; Non-metal gaskets for pipe connection flange isolation joints; Non-metal sealing rings for use as connection seals; Non-metal seals for use in pipeline joints; Non-metal seals for flange isolation pipe connections; Pipe gaskets; Pipe gaskets for oil and liquid chemical pipe; Rings of rubber for use as pipe connection seals; Sealing and insulating materials; Sheets of graphite-based material for use as gaskets, seals, packings, and heat insulators