Stainless Steel Cap and Damper in One UnitHandle allows for precise draft controlFully Assembled - Easy InstallationLIFETIME WARRANTY
8" x 8" ($239.95) 8" X 13" ($249.95) 8" X 18" ($339.95) 8" X 20" ($359.95) 10" X 18" ($369.95) 12" X 12" ($249.95) 13" X 13" ($329.95) 12" X 16" ($259.95) 13" X 18" ($339.95) 13" X 21" ($429.95) 16" X 16" ($379.95) 16" X 20" ($439.95) 18" X 18" ($439.95) 18" X 21" ($519.95) 20" X 20" ($529.95) 20" X 24" ($549.95) 24" X 24" ($579.95)