13/16 x 16 Billet Aluminum Sandwich Plate, 2.62" O-ring

This high quality, high-flow sandwich plate is machined from solid billet aluminum for maximum strength. The filter threads are 13/16 x 16 and the side ports have 1/2 NPT female threads. Includes a 2 5/8 inch diameter O-ring for sealing against the engine block. These sandwich plates are 1.25 inches thick, so be sure to check for filter clearance.