UNIVERSAL COMPATIBILITY: 25x29x1 replacement air filters for your furnace, air conditioner, or heat pump enhance HVAC system efficiency and support a healthy lifestyle (actual size: 24.50 x 28.50 x 0.75 ) MERV 8 PERFORMANCE: Protect your home or business from pollen, lint, mold, and more with MERV 8 synthetic media (comparable with MPR 700 & FPR 5) that captures 90% of dust without restricting air flow LONG-LASTING FILTRATION: Electrostatically charged media with 14 pleats per foot traps more microscopic particles and lasts 3x longer than fiberglass models (replace every 90 days for optimal performance) SUPERIOR CONSTRUCTION: Easy installation beverage board frames with dual wire backing outperform flimsy cardboard designs by improving durability, preventing warping, and resisting extreme temperatures MADE IN THE USA: Built with industrial-grade, recyclable materials and proudly manufactured 100% in the United States for dependable indoor air quality that is trusted by millions of homes UPC 717267052214 Brand Name Filterbuy Unit Count 4 Count Item Weight 3 Pounds MERV Rating 8 Manufacturer Filterbuy Max Velocity 615 Cubic Feet Per Minute Model Number AFB25x29x1M8pk4 Material Type Aluminum, Plastic, Polypropylene Product Grade Replacement Parts Item Type Name Air Filter Max Temperature 200 Degrees Fahrenheit Number of Items 1 Compatible Devices Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump Common Applications Allergen Reduction, High Strength Included Components Air Filters Warranty Description Defective items and products that were shipped incorrectly are subject to a refund or replacement on a case by case basis. Please contact our customer support team for more information if you experience any issues. Air Filter Construction Pleated Item Dimensions L x W x Thickness 28.5 L x 24.5 W x 0.75 Th