ZHC-5 Zinc Anode
(B-4, ZTB-5)

Length:  8"
Width:  4"
Thickness:  3/4"
Hole Distance:  4-3/8" center-to-center
Hole Diameter:   1/2" x 3/4"
Insert:  Aluminum, flush to back side of anode
Weight:  4.6 lbs