(2 Pack) Practical Pleat – 5 Pleated Filter For 1 Return Grille – MERV 11 (18x30x5) Description
Size:18x30x5 Made in USA. 2 Pack. MERV 11. Practical Pleats come as Nominal Sized by default, meaning they are 1/4′ smaller than the numbers advertised to allow space for the metal framing of your grille. Please measure your filter before ordering. If you need an exact sized filter please specify. Practical Pleats are 5′ thick pleated filters that are designed to fit into standard 1′ filter grilles, with no retrofitting required! Allow a 7 inch depth behind grille to provide space for the deeper filter and air flow through filter. They last longer, prevent dust, and are more efficient. MERV 11 is a superior residential filter and a great commercial filter that removes particulates like – mold spores, humidifier dust, lead dust, milled flour, auto emission particulates, insecticide dust, bacteria, etc. For MERV 14 see my other listings. Minimum Efficiency Reporting Value (MERV) is a standard that rates the overall effectiveness of air filters. Higher value MERV rating equates to finer filtration. *No medical claims expressed or implied.