No refunds or exchanges. All sales final. New, no box
- MERV 8 rating-up to 20x more efficient than typical 1" fiber glass filter.
- Easily fits Aprilaire/Space-Gard models 2200 & 2251.
- Captures high percentage of house hold airborne particles, including microscopic particles you can't see.
- Actual Dimensions: 19.90 x 24.75 x 4.38 in.