You are here :Home > All Filters > WHOLE HOUSE AIR FILTERS - Genuine Brands and AfterMarket filters, Actual sizes vary depending on brand. 5" depth is really 4 3/8, or 4 3/4, or 5 1/4 . Questions? info@oxyclean.com > Trane Air Filters > Trane FLRQB5AH23M11