Product Description

Aprilaire 413 (4 Pack) replacement filter media for your Aprilaire 4400 or 2400 high efficiency air cleaner. Rated at MERV 13 based upon 1200 CFM. This filter media needs changed twice per year if you have heating and air conditioning and once per year if you have just heating. Should you have special conditions like lots of shedding pets, are located near a farm or other dusty environment or are a commercial application you will need to replace the filter media more often.

This new style filter media DOES NOT require the use of pleat spacers but DOES require you to have purchased the 1413 Upgrade Kit in order to install it in a model 2400 air cleaner. If you have the 4400 air cleaner you do NOT need to purchase the Upgrade Kit.

The manufacturer is sometimes referred to as April Aire, Aprilair, April Air but is correctly spelled Aprilaire.