zinc Downspout Connectors Zinc downspout Y-Connectors by Zambelli feature fully welded seams for a watertight drainage system. Zinc Downspout Y-Connectors 3″ Zinc Round Downspout Connector $8.70 - $9.44 4″ Zinc Round Downspout Connector $9.91 - $10.76 3″ Zinc Y-Connector for Round Downspout $43.64 - $47.36 4″ Zinc Y-Connector for Round Downspout $48.18 - $52.29