Maintain the efficiency and performance of your Aprilaire Air Purifier with this high-quality replacement HVAC/furnace filter. Designed to fit models 1310, 2310, 3310, and 4300, this filter boasts a MERV 13 rating, ensuring it captures particles as small as 0.3 microns. The synthetic fiber filter media is pleated, providing a large surface area for maximum filtration.

The white filter has a depth of 4 inches, a height of 20 inches, and a width of 20 inches, offering a perfect fit for your system. Each pack contains two filters, allowing for a full year's worth of air purification. Enjoy cleaner, fresher air with this reliable and durable air purifier replacement filter, all while benefitting from free shipping.