AML-S Series are Male NPT threads by single barbed Elbow Adapters. Available materials are White and Black Nylon, and Natural Polypropylene. There is no parting line on the barb. The male NPT thread size is 1/8 inch and the barb sizes are 1/16 inch, 1/8 inch, 3/32 inch, 3/16 inch, and 1/4 inch.