Sierra 18-7920 10 Micron Fuel Water Separator FilterSierra spin on replacement OMC Style 10 Micron Fuel Water Separator Filter. Sierra is an industry leader in 10 Micron technology. This canister filter is over 90% efficient at removing dirt and debris from your fuel system without starving the ending for fuel. SAE, JIS and ISO tested and approved; Fire tested to meet ISO and USCG requirements; Pressure and leak tested to ABYC and USCG standards; Rating: 10 MicronThread Size: 1" - 12Interchangeable with: Fram; CH33APL; Johnson/Evinrude Outboard; 771839; Mercruiser Stern Drive; 35-809099; Mercury Marine; 35-809099; OMC Stern Drive; 771839; Racor; S3214;