The Strata Filter 13-1/2" x 77" x 1" by AAF International is designed for high-efficiency air filtration in commercial and industrial applications. This filter features a robust construction that ensures durability and optimal performance. With a depth of 1 inch, it fits standard HVAC systems seamlessly. The filter is engineered to capture airborne particles effectively, enhancing indoor air quality. Its dimensions make it suitable for various air handling units, and it complies with industry standards for filtration efficiency. Ideal for environments requiring stringent air quality control, the Strata Filter is a reliable choice for maintaining clean air.