Duct Plugs & End Caps

Duct Plugs & End Caps from Millennium

Millennium carries 6 in tapered duct plugs, fiber optic plugs and 1.5 in blank plugs. Plugs seal duct ends against water and pests. Browse 122 products in this category.

Match the plug to the duct size. Need a quote or help matching parts? Reach out to Millennium.