Derales most versatile sandwich adapter kit offered and is designed to install on 90 per cent of the passenger vehicles on the road today. This universal kit includes an 180 degree F thermostatic sandwich adapter with 3/8 inch NPT ports and fits oil filter landings from 2 3/4 inch up to 3 1/2 inch diameters, this adapter provides external oil lines to allow the addition of an engine oil cooler. It installs between the stock engine oil filter landing and the oil filter. Stock filter is retained. Kit includes o-rings, sleeve nuts and brass hose barb fittings.