INSTALLATION FLEXIBILITY: Use this 4'' oval to 3'' round adaptor to add installation flexibility to WhisperValue ventilation fans.
LONG LIFE, GUARANTEED: Panasonic ventilation fans, switches, modules, and accessories are high-quality and built to last. Included 3-year limited warranty.
QUALITY BUILT: This adapter is made of 24 gauge steel and is fire code rated.
WHISPERVALUE VENTILATION: Designed for Panasonic WhisperValue fans (sold separately), ventilation fans will increase your air quality, eliminating humidity, mold, mildew, and other air pollutants from any room.