The AF series is an FNPT to standard triple barbed hose adapter and is molded of NSF-listed natural nylon. Natural and black polypropylene are optional (shown). Available in combinations of these sizes: 1/8 inch, 3/16 inch, 1/4 inch, 3/8 inch, 1/2 inch, 5/8 inch, and 3/4 inch. BSPT threads are available.