Looking for a cleaner way to convert your cooling system to AN fittings? Here’s a quick look at how the patented AutoPlumb Water Neck Adapter installs. No welding, no hose clamps, no splices, and no reducers. Available in -16AN and -20AN for your build. Shop at autoplumb.com #WeldBung #CarEnthusiasts #HotRod #ANFittings #CoolingSystem