𝐔𝐍𝐈𝐕𝐄𝐑𝐒𝐀𝐋𝐋𝐘 𝐂𝐎𝐌𝐏𝐀𝐓𝐈𝐁𝐋𝐄 - Actual size: 13 3/4''x24 3/4''x3/4''. 6-Pack 14x25x1 MERV 13 air filter replacement for your air conditioner, furnace, heat pump or HVAC system. The MERV 13 air filter is comparable with MPR 1900 & FPR 10, and works with almost any brand. 𝐏𝐔𝐑𝐈𝐅𝐈𝐄𝐃 𝐄𝐍𝐕𝐈𝐑𝐎𝐍𝐌𝐄𝐍𝐓 - Effective filtration of micron-sized particles. Ensure home heating, ventilation and air conditioning. Say hello to better indoor air quality! 𝐇𝐈𝐆𝐇 𝐐𝐔𝐀𝐋𝐈𝐓𝐘 - Thick clay-coated frame with pleated design remains strong in humidity and temperatures up to 180°F (81°C). Pleated filters offer a variety of benefits - greater surface area, thicker trapping capacity, and extended air conditioner or furnace life. 𝐋𝐎𝐍𝐆 − 𝐋𝐀𝐒𝐓𝐈𝐍𝐆 - For best results, change the filter every 60 to 90 days during normal times of the year, but increase the frequency to 30 days during peak months of summer and winter. Installing or replacing our air filters for AC units or furnace is as simple as it gets. Simply slide the filter into slot and you're done! 𝐀𝐃𝐕𝐀𝐍𝐂𝐄𝐃 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐘 - We are specialized in the production of air purification equipment, dedicated to environmental protection and healthy living. Our products will provide high quality to keep your home's air pure., Manufacturer: BOOGUAN