Made for use with the Stant 12270 pressure tester.
Includes seal.
Item Package Dimension: 2.625" L x 2.625" W x 2.625" H
12016 threaded adapter is required to fit late model Audi, Porsche & VW cooling systems with threaded filler necks. Thread specifications :48 x 3 : i.e 3 threads per inch and 48 is in mm which converts to 1.89†.