Cart Remove item Thumbnail image Product Price Quantity Subtotal × FILTER NC 18" x 18" x 1" Carbon Filter $239.88 FILTER NC 18" x 18" x 1" Carbon Filter quantity $239.88 × Duct ring $16.00 Duct ring quantity $16.00 Coupon: Apply coupon Update cart Cart totals Subtotal $255.88 Shipping Enter your address to view shipping options. Calculate shipping Country / region: Select a country / region… United States (US) State / County: Select an option… AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict Of ColumbiaFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyomingArmed Forces (AA)Armed Forces (AE)Armed Forces (AP) City: Postcode / ZIP: Update Total $255.88 Proceed to checkout