12x12x5 (11.75 x 11.75 x 5) MERV 13 Tier1 Grille Filter NoShipIowa order yours today

order yours today

The USWF gravity-fed filter elements combo pack can be used as replacements for the Berkey BB9-2 black carbon & PF-2 fluoride filters but also fit many other brand's gravity systems

gallon capacity

Filters left in longer will fatigue and burst causing water damage

Our Tier1 16x24x1 Air Filter MERV 11 comes in a 6-Pack

12x12x5 (11.75 x 11.75 x 5) MERV 13 Tier1 Grille Filter NoShipIowa order yours todayOur Tier1 air filter grilles are constructed to ensure air to flow effortlessly between your ventilation systems and your interior rooms. The filters are easy to replace, and larger media capacity provides highly efficient dust particle capture. Nominal size is 12x12x5. Actual size is 11 3 4x11 3 4x4 3 8. No assembly required, the filter should easily slide right in! Improve your overall air quality and circulation in your home with a Tier1 air filter