Koch Multi-Pleat Filters | XL8, XL10, XL11, Green13, BOSS, Elite

Koch Multi-Pleat is the workhorse pleated panel line — the residential and light-commercial default for most U.S. HVAC equipment. XL8 (MERV 8) for baseline allergens and equipment protection, XL10 (MERV 10) for finer dust and pet dander, XL11 (MERV 11) for upgraded commercial RTUs and AHUs, Green13 (MERV 13) for aerosol capture, schools, and post-2020 indoor air quality specs. BOSS and Elite add high-capacity construction with deeper pleats and longer service intervals. Available in 1″, 2″, and 4″ depths in both Standard Capacity and HC variants. Need a non-catalog size? Build a custom Koch pleated filter.