LifeSupplyUSA 5 Pack Aftermarket Replacement Pre-Filter Pads Designed to fit IQ Air Iqair PF40 LifeSupplyUSA is not affiliated with iqair and does not manufacture genuine filters for iqair Pre Filter Pads for IQ Air IQair PF40 The use of these aftermarket replacement filters will decrease the stated performance of iqair's filtration systems and may void the iqair filtration system original manufacturer's warranty Brand New Individually Sealed, Dimensions 13 x 12.25 inches by LifeSupplyUSA Great Reviews and many satisfied customers:)