For premium performance, the 1" inch depth Glasfloss ZL MERV 10 air filter can be used in HVAC systems where cleaner air quality and filtration is required such as commercial and residential properties, school systems, government institutions, health-care, and industrial applications. The MERV 10 filter features the latest in media technology to achieve a MERV 10 rating per the ANSI/ASHRAE 52.2 Test Standard, while maintaining low pressure drop and long service life. Glasfloss Z-Line Series MERV 10 filter media is laminated to a heavy-duty, galvanized, rust-resistant metal backing that stabilizes the media during operation. The pleats are formed in a radial configuration to ensure proper particle-loading. ● Actual Size: 13-1/2 x 23-1/2 x 7/8 | Nominal Size: 14x24x1 ● Filtration Rating: MERV 10. Comparable to MPR rating MPR 600 to 800, or FPR 5-6 rating . ● Incorporates 100% synthetic fibers which are electrostatically charged, thermally bonded and are manufactured in an engineered gradient structure. The thermally-bonded fibers do not absorb moisture. The engineered grading structure media supports high dust-holding capacity and long filter service life. ● Made in the USA. Ideal for residential, commercial, schools, & industrial filtration applications.