IMPA Code 673501 ZINC ANODE ELEMENT, G-500, AxB = 12.7 x 19.1 MM, NPT 3/8" | 12.7 P x 19 L x 3/8 (2012-10)
IMPA Code 673502 ZINC ANODE ELEMENT, G-625, AxB = 15.9 x 19.1 MM, NPT 1/2" | D15.9MM x L19 x Bolt : 3/8" (2014-12)