This pack of 4 Filtrete air filters by 3M is designed to fit 16 x 25 x 1 inch filter slots. The filters are made with high-quality materials to ensure optimum performance and longevity. With its white color, this air filter perfectly blends with any home decor and keeps the indoor air quality at its best. This item is listed under the categories of Air Filters, Indoor Air Quality & Fans, Heating, Cooling & Air, Home Improvement, and Home & Garden. Get the best value for your money with this pack of 4 Filtrete air filters.