The 20x30x1 Reusable Air Filter Cut To Compatible with Furnace & Air Conditioner Washable Reusable High Air Flow Polyester Fiber Filter Media Enough to fit your brand air conditioner, AC, HVAC, vent, RV and workshop, filter normal air particles, help improve energy efficiency KEY POINTS: Cut To Fit Air Filter: Easily tailor this 20x30x1 furnace filter to fit your furnace Balanced Airflow: This 20x30x0.7 inch hvac filter is large and thick, this air conditioner filter strikes the perfect balance between airflow and particle filtration, filtering dust, pollen, and other airborne particles without restricting airflow High Air Flow Design: Rated at MERV 5, Constructed with premium polyester fiber media optimized to maximize airflow, ensuring efficient operation of your HVAC system for better circulation and energy savings Washable & Reusable: The air vent filter is washable, just wash it with pressure washer, hose, vacuum cleaner or just rinse, then leave to 100% dry for next replacement TIPS: Versatile Application This 20x30x1 reusable air filter is fits for furnace, air conditioner, RVs, HVAC systems, mobile home, industrial or commercial HVAC units,whole-house air filtration systems. This air vent filter offers flexible use across different environments, enhancing air quality wherever it's needed. Easy Installation Measure your old filter or opening, cut it to the required size, clean the surface of the opening, stick the adhesive hook, and apply the air filter. Please support the filter with a rigid outer frame (aluminum, steel or wood) to prevent it from accidentally falling through the opening. Package include: 3 x 20x30x1 Reusable Air Filter