This Elbow 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″ through 2”. It conforms to ASTM D 2609 and is NSF certified for use with potable water. Female NPT thread sizes are 1/2″, 3/4″, 1”, 1-1/4”, 1-1/2” and 2”. Barb sizes range from 1/2″ to 1-1/2”.