Broan-NuTone 1667H Hsg F/1670F, 1671F, 1688F, 1689F 6Pk Since their beginning in 1932, Broan has pioneered many of the product innovations now established as standards of the industry. Today, Broan carries on the commitment to provide the finest pro ducts in the industry. Broan-NuTone 1667H Hsg F/1670F, 1671F, 1688F, 1689F 6Pk Features: • Housing Pack for 1670F, 1671F, 1688F and 1689F (damper/plastic duct connector included