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![Amazon.com: 16" X 16" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 18 5/8" X 18 5/8"] : Tools & Home Improvement](https://m.media-amazon.com/images/I/81p7PEliWvL._AC_UF894,1000_QL80_.jpg "Amazon.com: 16\" X 16\" Steel Return Air Filter Grille for 1\" Filter - Fixed Hinged - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 18 5/8\" X 18 5/8\"] : Tools & Home Improvement")
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AAF Flanders 80055.011618 16 in. x 18 in. x 1 Prepleat 40 LPD Standard Capacity MERV 8 Air Filter
Dynamic C3P1618 16 x 18 Air Filter
