Baldwin Filter B481 Oil Filter Descriptions : Microlite Full-Flow Lube Spin-onContains : 50 PSI By-Pass ValveFits : Worthington CompressorsReplaces : Worthington FLR412Thread : 3/4-16O.D. : 3 11/16 (93.7)Length : 6 5/8 (168.3)I.Gskt : G381-A