Pencil-type zinc anodes with brass plug in a variety of sizes to suit different marine engines.

PART NUMBER LENGTH WEIGHT EXTERNAL PLUG THREAD HEX HEAD SIZE OEM REPLACEMENT PART EXPOSED LENGTH DIAMETER ANODE TO PLUG THREAD 21116 60mm 0.04 kg 1/4″ BSP 14mm Universal 44mm 10mm 5/16″ UNC 21118 73mm 0.07 kg 3/8″ BSP 17mm Universal 52mm 13mm 3/8″ UNC 21120 76mm 0.13 kg 1/2″ BSP 22mm Cummins 68241 & Yanmar 119574-18790 51mm 16mm 7/16″ BSW 21122 78mm 0.21 kg 3/4″ BSP 27mm Universal 51mm 19mm 1/2″ UNC 21199X 62mm 0.02 kg 1/8″ NPT 11mm Universal 48mm 6mm 1/4″ UNC