Galvion Type Anodes (Type G) are designed to be screwed together so that you may add as many pieces together as you like.NPT Size: 3/8" Internal Thread: 12 28 Use with Element: G-500
3/8" NPT Brass Plug x 3" length of zinc rod complete. Rod diameter: 1/2" Rod thread: 7/16 20 NF Wrench Size: 11/16"
Not sure what size? Watch our video below to help identify it. https://youtu...