Bnx Trufilter 20X25X4 (19.5?? X 24.5?? X 3.63?? Slim Fit) Merv, Mpr 1900 Fpr 10 Actual Size: 19 1/2?? x 24 1/2?? x 3 5/8?? 20x25x4 MERV 13 air filter replacement for your air conditioner, furnace or HVAC system. Actual Size: 19 1/2?? x 24 1/2?? x 3 5/8??. Comparable with MPR 1500-1900 FPR 10. Provides optimal defense with electrostatically charged filter media and superior low air flow resistance. Based on ASHRAE Standard 52.2-2017 Initial Efficiency / Resistance. MADE IN USA, SUSTAINABLY - Proudly manufactured by BNX Converting, LLC in Houston, TX, a registered and approved facility (EPA Registration # 101638-TX-1). SUPERIOR PERFORMANCE - The BNX MERV 13 air filter media outperforms standard fiberglass filters and adopts the latest in electrostatic filtration technology to capture maximum pollen, mold bacteria, smoke, carriers other microscopic particles while maintaining industry leading superior low air flow resistance. CAPTURES MICROSCOPIC PARTICLES - The BNX air filter has a MERV 13 rating allowing it to capture 98% of airborne particles without impacting air flow. Captures microscopic particles such as virus-carriers, bacteria, odors, smoke, and pollen, pet dander, allergens, dust, lint, mold, dust mites, smog. BNX Quality Promise Applications - BNX is committed to delivering the highest quality American made safety products, made with American workers, and using the latest automated manufacturing processes and technology with the strictest quality standards