The Panasonic FV-EB04VE1 WhisperComfort Elbow, includes double chambers for exhaust and supply air.ERV balances air pressure by supplying fresh exterior air while exhausting stale interior air MERV 6 supply filter and damper employed Exchange capillary core recovers temperature and moisture Dual setting air volume for 40 20 or 20 10 CFM Ideal for new air tight houses built to meet energy efficiency standards Compact size fits in ceilings and 2 x 8 construction Sensible Energy Recovery 66% Latent Energy Recovery 33% Does not require a condensation line or drain
