Transition nipple. 3/8 male pipe thread by 1/2 inch male pipe thread.

WARNING

The State of California, through the passage of Prop 65, requires us to disclose that products containing PVC can expose you to chemicals, including Titanium Dioxide(only when airborne as unbound particles of respirable size), which are known to the State to cause cancer.

CA Health & Safety code section 25249.5

For more info visit: https://www.p65warnings.ca.gov/