8style cg = utilizes an internal ring which accurately centers gasket on flange face, provide addition radial strength to pervent gasket blow-out, act as compression stop, general purpose, used with flat face or raised face flanges, non-asbestos flexite super filler material (pink strip marking) gasket standard asme B16.20, circular shape, pipe size: 4 in.; pressure rating: 150 psi; winding material: 304 stainless steel; outside dia: 5 7/8 in.; gage ring thk .125; cross sectional thk .175 in.