This Accusump installation kit is for 20MM thread standard gasket size (apox 2-5/8") spin-on filter applications. The kit provides you with all the parts to plumb an Accusump. It has our easy to install input sandwich adapter that mounts between the block and spin on filter to access the engine’s oil flow. The kit includes two 1/2" N.P.T. fittings, two -10 AN hose ends, 6 ft of -10 AN stainless steel braided hose, and a billet aluminum oil input sandwich adapter for your application.