Hastings Filters LF641 Spin-On Oil 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