HIGH-QUALITY ROUGH-IN KIT: Comes with a 10" duct connector plate, 2 power cords and a wire box cover

PEAK PERFORMANCE: Kit assists with keeping exterior blowers operating at superior levels to ensure a long life

DURABLE CONSTRUCTION: Constructed of high-quality materials to ensure lasting use

SPECIALLY DESIGNED: Made for use with Broan-NuTone's models 331H, 332H, 335 and 336 exterior blowers and HLB3, HLB6, HLB9 and HLB11 in-line blowers

IDEAL SIZE: Measures 25" x 11" x 3" making it perfect for your exterior blower