De-Icer Aerator Anode - 0.50" Shaft Zinc Zinc .32lbs Height:1.26" Ø-1.50" Ø 1- 0.50" Hardware included Specifications: Material: Zinc Box Dimensions: 1"H x 2"W x 3"L WT: 0.5 lbs UPC: 8052744984087 Quick Guide (pdf)Owner's Manual (pdf)