quick view Add to Cart Derale Cooling Products Low Profile Pressue relief Sandwich Adapter with 3/8" NPT Ports and 20x1.5mm Filter Thread MSRP: $61.65 $50.00 This new high quality low profile aluminum sandwich adapter measures only 1" thick and features 3/8" NPT ports, and a pressure relief valve. This provides external oil lines to run an engine oil... Add to Cart Add to Wish List Add to My Wish List Create New Wish List