Exact Measurements: 15-5/8 x 19-5/8 x 3/4 Inches | Nominal Size: 16 x 20 x 1 • Durable Double Strut Design with 10% Greater Open Media Area. • Easy to Install and Easy Disposal. No Metal Components • Used for residential, commercial, and industrial HVAC applications. Made in USA. • Good HVAC System air flow and equipment protection. • The 16x20x1 Glasfloss GDS disposable panel fiberglass air filter features an innovative, reinforced, double strut construction for improved durability and performance in commercial, industrial, and residential applications. The design provides 10% greater open media area than traditional metal grill filters and offers excellent dust holding capacity. In addition, the design allows for easier disposal, eliminates metal edges for safer handling and reduces carton weight for lower shipping costs. The GDS disposable panel filter is available in many standard sizes.