Butterfly Cap-Damper Lids They get a quality chimney

They get a quality chimney cap with huge screen area (3/4" mesh) for its size and you only have to carry one cap

Smoke Guards are spring loaded for placement while the silicone adhesive sets

steel to steel

Easy to install

12" and 13" masonry rounds)

Butterfly Cap-Damper Lids They get a quality chimneyButterfly Cap Damper LIFETIME GUARANTEE! Just like the Butterfly damper, the Butterfly Cap Damper gives you access to the chimney with the removal of a couple of wingnuts (below). Because of its design, the Butterfly Cap Damper installs on either a chimney with a flue tile (liner) sticking up or one that does not have a tile above the crown. Just glue it on with the silicone that comes with it! Constructed of 304 stainless steel, spring loaded, it's