REDZn Engine Anodes are now known as PRO Engine Anodes. Available exclusively at

3/4 NPT Hex Plug, 3/4 Rod
E-3A, E-3, E-4,E-5

Regular price $13.99

3/4" NPT Hex Plug, 3/4" Rod Diameter

Wrench Size 1 1/16
Plug Material Brass
Rod Material Mil-Spec Zinc A-18001K/ASTM B418 Type 1
*Zinc length does not include the length of the plug (just the silver part!)
**Standard shipping FREE for orders over $100, $8 otherwise
***5% off $600+