Whispergreen Select Pick-A-Flow 30 to 110 CFM Bathroom Exhaust Fan Flex-Z Fast B
Whispergreen Select Pick-A-Flow 30 to 110 CFM Bathroom Exhaust Fan Flex-Z Fast Bracket 4 or 6 In. Duct Adapter. The only residential vent fan series with a combination of certified CFM performance at 0.5 w.g. and low sone levels, the WhisperGreen’s superior performance exceeds industry standards set by ASHRAE and ENERGY STAR.