This is a very correct and US MADE drop in oil filter element. This is not the cheep Taiwan /China imported junk from other dealers. This is for the Military standard canister oil filter. The military standard canister was stock on the MB, GPW, M38, M38A1, and M422 Mighty Mite. The canister inside opening is 5 3/4″. Sometimes the canisters end up on CJ2A and Cj3As. Military Standard Filter is normally stamped into the edge of the lid. This is much to large for the smaller civilian canisters. This comes with the lid gasket as well. Please measure your inside opening to make sure you get the correct one. This filter is 4 1/4″ across and 4 1/2″ tall. NOTE: We have added comparison pictures for reference purposes only. The larger filter on the right is the military Standard and the smaller is the civilian. The canister lid pictures are for size reference and identification. They are not part of this sale. This sale is for one filter.