Finding the right fitting for your build can somtimes be a hassle, thankfully fleece has made it easy. This Fleece Performance O-Ring to Hose Barb fitting features a -8AN O-Ring fitting, 3/4"-16 male AN straight thread O-Ring Boss (ORB) fitting with O-ring, short hex height to maximize install clearance, black anodized aluminum construction, and is available in either 1/2" and 5/8" sizes.