Aeroflow '-20 AN Water Neck Adapter - Blue Suits 360C Swivel Aeroflow Water Necks

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These AN water neck adapters from Aeroflow allow the use of AN hose and fittings for radiator hose applications. Specifically designed for use on all 360-degree swivel thermostat h ousings from Aeroflow Performance. Simply remove thebarb fitting and screw in one of these AN adapters. -16AN Adapter is 52mm (2-3/16”) from O-ring toAN, -20AN adapter is 54mm (2-1/8”) from O-ring to AN. Show more