Machined from billet 6061-T6 aluminum for durability. Ports are machined for free flow of oil. These remote filter adapters feature -12 AN ports on the inlets and outlets. Fittings are included.Pit Stop USA offers Peterson Remote Oil Filter Mount - 1-1/2"-12 Thread Filters -10 AN Fittings 09-0530 at low everyday prices. Be sure to check out all of our products from Peterson Fluid Systems including Peterson Fluid Systems Remote Oil Filter Mounts.