With the MERV 8 extremely low pressure drop and high dust holding capacity, these filters are great for your utilization to supply your home or business with the air quality you wish for while optimizing the performance and longevity of your HVAC unit. Constructed from a two-piece frame provides rigidity and durability with double-wall thickness around the outer edge. The filter is derived from a mechanical blend of synthetic fibers which achieves a MERV 8 rating per ASHRAE 52.2 Test Standard. Independently tested and verified for quality control (comparable with MPR 600) Shields from Lint, Dust, Pet Dander, Pollen, Dust Mites, & Mold 100% synthetic, proprietary media withstands moisture and damage Rust-resistant, expanded metal support grid made of galvanized steel 100% water repellent, high-durability adhesive coats entire interior of frame Pleat consistency maximizes performance Industry standard suggests replacing filters at least every 3 Months

• ACTUAL MEASUREMENTS: 15-1/2 x 19-1/2 x 1-3/4 | NOMINAL SIZE: 16 x 20 x 2.
• MADE IN USA. Suggested to replace at least every 3 months for optimal performance.