Type E flange isolation gasket kits are designed to prevent galvanic corrosion between dissimilar metal flanges while ensuring electrical isolation. This kit includes an ASME B16.5 weld neck raised face (WN-RF) flange, a phenolic and PTFE composite gasket for chemical resistance and sealing reliability, a phenolic sleeve to isolate the bolt shank, and a phenolic washer with zinc-plated steel (ZPS) backing for load distribution. Sized at 3 inches and rated for Class 300 LB pressure.