25�20 Diffusion Media Panel Filter600, Koch 136 2025 01 (24 pcs) voomi_id_73006 significantly reducing installation time and VG1245AG+923BUB significantly reducing installation time and labor cost with its advanced press technology Ensures steady fluid flow as well as allow maintenance personnel to make fewer trips when carrying filters to the air handler Maxi Grid 600L Diffusion Panel Paint Filtration Panels Progressive density media Durable steel internal support wire Individual panels or link panels for front access holding frames or side access housings Excellent filter for high moisture applications Size W 20xD 25 Maxi Grid A Complete Line of Internally Supported Panel filters Koch Filter offers six unique Maxi Grid Panel Filters for use as prefilters or final filters in commercial and industrial air filtration systems of all types