Replacement oil filter for Mercury and Mariner 75 hip through 115 hip outboards (serial number 1B366823 to 2B094995) and the Mercury 150 hip EFI 4-stroke outboard. Features an anti-drain back valve to ensure start up lubrication and eliminate dry starts. Produced to Meet Mercury marine original equipment Manufacturer specifications to best protect your engine. Superior m-pleated cleansing filter media removes oil contaminants. 50% thicker metal shell than conventional filters with a durable, corrosion resistant finish. Easy to replace with common tools and oil filter wrench.