16x25x4 MERV 13 AC Furnace 4" Inch Air by Glasfloss Industries. 6 PACK (Actual Depth: 3-3/4")

6 PACK of 16x25x4 AC Furnace Air Filter MERV 13 | Actual Size: 15-1/2 x 24-1/2 x 3-3/4 | Our MERV 13 Electrostatic Air Filter is a premium top tier filter that can be used in almost any building where optimum indoor air quality is desired such as superior home HVAC systems, commercial properties, hospitals, and schools. MERV 13 Specifications: Protects from pollen, dirt, dust, pet dander and virus carriers, smoke, smog, lead dust, oil smoke and micro allergens. ASHRAE tested as required by LEED guidelines. Meets LEED Green Building criteria for minimum efficiency 1”, 2” and 4” depths available Heavy Duty Beverage Board Frame - Moisture resistant, sturdy frame material stands up to rough handling, difficult service conditions, long service life. Low initial resistance also helps to promote low energy consumption Consistent pleat shape produces optimum performance, minimizes resistance and improves dirt loading characteristics throughout the life of the filter. Expanded metal pleat support grid is made of galvanized steel for maximum rust resistance. Our MERV 13 filters will not rack, warp or bend under normal handling or operating conditions. Water-Repellent Adhesive – Adheres Even When Wet. The adhesive used to bond the frame and media pack into a unitized assembly is highly water repellent. The pleats hold together even when wet. No delaminating, no excessive buckling, no collapsing. Industry applications: Pre-filtration for hospitals, general health care facilities, food processing plants, telecommunications, pharmaceutical and semi-conductor manufacturing, etc. 100% Synthetic Media Pack Support Member, Galvanized Steel Pleat Support Grid, Water-Repellent Adhesive, Double Wall Frame. Recommended to replace at least every 90 days Made in the USA