Martyr

Martyr 1/4 Inch x 2 Inch Zinc Engine Cooling Pencil Anode - Zinc for Salt Water

Size: 1/4" x 2"  Material: Zinc Brass Pug Not included

Martyr 1/8" NPT Thread Zinc Engine Pencil Anode with Brass Plug

Size: 1/4" x 2"  Plug thread size: 1/8" NPT  UNC: 1/4" Material : Zinc

Martyr 3/4 Inch x 2 Inch Zinc Engine Cooling Pencil Anode - Zinc for Salt Water

Size: 3/4" x 2"  Material: Zinc Brass Plug Not Included

Martyr 3/8 Inch NPT Thread Zinc Engine Pencil Anode with Brass Plug

Size: 1/2" x 2"  Plug thread size: 3/8" NPT  UNC: 3/8" Material : Zinc

Martyr Aluminum 2-13/16" Rudder & Trim Tab Anode with Allen Screw

Aluminum for use in brackish water  Size: 2-13/16" dia. x 1/2"   For rudder and trim tab 

Martyr Zinc 1-7/8" Rudder & Trim Tab Anode w/Allen Screw - Zinc for Salt Water

Zinc for use on Salt water  Size: 1-7/8" dia. x 1/4"  For rudder and trim tab