Wilkerson Drain Auto Drain w/Fluorocarbon Seal Hex Nut, Oaring, B18, B28, CB6. Wilkerson Drain. Automatic drain with a fluorocarbon seal. Used on F16, F18, F26, F28, F30, F35, M16, M26, M30, M32, M35, CB6, B18, B28.
