Patent pending remote oil filter mount features a built-in thermostat to save both space and cost Internal thermostat ensures engine oil reaches safe operating temperatures quickly and prevents over-cooling Inlet/outlet ports in standard -10AN O-ring boss threads. Optional fittings are available to accommodate -6AN, -8AN, -10AN and -12AN lines, or 3/8" and 1/2" hose. Compatible with M22x1.50, 13/16"-16, and 3/4"-16 filter threads (filter thread adapter screw sold separately) Compatible with filters with gaskets up to 3.55" in outer diameter Lifetime Warranty. Made in USA.