Hastings LF157 Full-Flow Lube Oil Spin-On Filter Nitrile gasket withstands extreme temperatures and provides a consistent seal, preventing leaks High performance anti-drain back valve for enhanced protection where applicable Steel coil spring keeps its shape and maintains a positive load pressure on the adapter seal and element All metal end caps maximize filter life with increased stability and structural strength Heavy duty baseplate is joined to the can with a double-rolled, tuck lock seam