View Larger Image Round Copper Chimney Flue Caps 5 / 5 ( 2 votes ) Round Copper Chimney Flue Caps. These are pretty large. Flues almost 21″ in diameter. By Robert Anthony|2019-09-28T10:50:19+00:00September 28th, 2019|Chimney Caps|0 Comments Share This Story, Choose Your Platform! FacebookTwitterLinkedInRedditWhatsappGoogle+TumblrPinterestVkEmail Related Posts Round Copper Chimney Flue Cap Round Copper Chimney Flue Cap Copper Chimney Cap with Domed Roof – Lattice – and Spire / Finial Copper Chimney Cap with Domed Roof – Lattice – and Spire / Finial Next up will be a Custom Chimney Cap… Next up will be a Custom Chimney Cap… Leave A Comment Cancel reply Comment Save my name, email, and website in this browser for the next time I comment.