14WHR - Butt-Weld Hose Adapter - PolishedThe 14WHR Butt Weld Hose Adapter is a sanitary fitting designed to be welded into permanent piping systems to connect external hoses. This adapter is constructed of 316L stainless steel polished to 32Ra ID OD and is available in sizes ranging from 1 2" to 4". Other sizes and materials are available by special order, please contact our sales team for more information. Tube O. D. A 1 2" 1. 50 3 4" 1. 50 1" 1. 69 1 1 2" 1. 69 2" 2. 31 2 1 2" 2. 00 3" 3.