VW 1600 Based Type 1 And 2 Full Flow Oil Filter Adapters. Full flow oil Filter adapters in/out left, in/out right or in/out up allows for conventional screw on oil filters. Comes with mounting hardware and nipple to screw on filter. 3/8 inch threaded Brass barbed fittings required. FRAM PH8A filter is what we recommend. In/Out right is most commonly used under the left rear fender.