M1-1056 Reusable Filter Frame System. Actual Size 15 3/8 x 25 1/2 x 5 1/4. Includes Lifetime Reusable Frame MODEL # RFFS 816 and 6 Replacement Filters PART # PP-816 MERV 11.Replacement Pleat Packs PART # PP 816 MERV 11 is for use with Model # RFFS 816 Reusable Filter Frame System Kit Includes Lifetime Reusable Frame MODEL # RFFS 816 and 6 Replacement Filters PART # PP 816 MERV 11 Actual Size : 15 3 8" x 25 1 2" x 5 1 4" One Replacement Filter lasts Up to 6 Months. Reusable Frame System saves up to 90% of Storage Space and up to 90% Volume of Materials going to Garbage Landfill. Simple Replacement of Pleat Packs and takes