oil filter sandwich adapter offers one of the easiest ways to install your oil temperature or oil pressure sender for a quick and smooth installation of your gauge. Each oil filter adapter plate allows you to mount oil sensors and feed lines without the need to drill into your oil pan or remove your stock sensors. Each plate is built from aluminum and engineered specifically to prevent unnecessary drilling on your vehicle when doing further aftermarket installations by utilizing the mounting point on your engine oil filter. (3) 1/8th NPT ports, (2) port plugs, and an O-Ring is included. There are multiple sensor openings on each oil filter sandwich plate allowing for a variety of mounting options.