A sandwich plate is fitted between filter head and filter bowl.
A sandwich adapter version with thermostat comes with a built in thermostat (80ºC) which accurately controls oil flow to the cooling device allowing for quick engine warm up plus oil system protection in cold climates.
Units are made from cast aluminum and are supplied with sealing o-rings and extension screw to match desired filter thread.
Oil inlet/outlet ports are 1/2″ female thread to designed to receive male/male unions which are available separately.
