The SFT series tee adapter is made of PVC and can be used for irrigation and O.E.M. applications. There is a wide variety of configurations available for use with polyethylene pipe sizes 1/2 inch through 2 inch. It conforms to ASTM D 2609 and is NSF-certified for use with potable water. Female NPT thread sizes are 1/2 inch, 3/4 inch, 1 inch, 1-1/4 inch, 1-1/2 inch, and 2 inch. Barb sizes range from 1/2 inch to 1-1/2 inch.