6-in double inlet grilleIncludes 2 inlet grillesTwo 6-in backdraft dampersClamp: 121 Y-Adaptor, 6-in.....
4-in single inlet grille4-in backdraft damperClamp: 6.....
Panasonic passive inlet provides makeup (outside) air to help balance indoor vs. outdoor air pressur.....
6-in single inlet grilleAccessory for WhisperLine seriesSubtle, unobtrusive, and blends in for a nat.....
4-in double inlet grilleIncludes 2 inlet grillesTwo 4-in backdraft dampersClamp: 121 Y-Adaptor, 4-in.....
6-in to 4-in double inlet grilleIncludes 2 inlet grillesTwo 4-in backdraft dampersClamp: 121 Y-Adapt.....
6-in single inlet grille6-in backdraft damperClamp: 6.....
4-in single inlet grilleAccessory for WhisperLine seriesSubtle, unobtrusive, and blends in for a nat.....
1 Y-adaptor, 8-in to 6-in x 2Accessory for WhisperLine seriesConstructed of 24-30 gauge aluminum.....
