Shop › 4" Round Copper Downpipe Bracket 4" Round Copper Downpipe Bracket $15.55 4" Round Copper Downpipe Bracket with Bolt. Securely supports 4” round downpipes for reliable drainage. 4" Round Copper Downpipe Bracket with Bolt. Securely supports 4” round downpipes for reliable drainage. Purchase Added! You Might Also Like Diamond Downpipe Band $0.98 Plain Galvalume Downpipe Band $1.28 Round Aluminum Downpipe Band $0.98 Plain Aluminum Downpipe Band from $0.98 Plain Copper Downpipe Band $3.00