The Pentair 357100Z special gasket is designed for compatible IntelliFlo VS pump applications where the seal plate area needs the correct replacement gasket. A gasket like this is useful because it helps seal a critical wet-end interface and supports cleaner pump reassembly after service.Replacement is often necessary when the original gasket is flattened, cut, hardened, or no longer dependable after disassembly. Installing the proper Pentair gasket can help improve the repair outcome and restore confidence in the pump’s sealed connections.This OEM special gasket is a practical service part for compatible IntelliFlo VS pumps that need the right seal-plate gasket during maintenance. OEM Pentair IntelliFlo VS seal plate special gasket Fits compatible IntelliFlo VS pump applications Helps seal the related wet-end connection Useful when the original gasket is worn or damaged Supports cleaner and more dependable pump reassembly