Aprilaire Tripure 413 Upgrade Kit & Filter - MERV 13

The AprilAire UK413 replaces the 4" #413 filter, which will become obsolete.  Features the new and improved 3" MERV 13 Air Filter with TriPure Technology and free, one-time upgrade rails for seamless use in existing installed cabinets. TriPure Technology delivers cleaner air through advanced filtration media, optimized airflow for lower static pressure, and long-life performance that protects HVAC systems and homeowners.

• One time upgrade and easier filter change - tool-free install of one-time upgrade rails that glide simply into place for easier installation.
• Filter ships in collapsed state for easy storage. 
• Slides into place via the unique Aprilaire interlock rail system. Unpack. Slide in. Close the door. Done.
• Built for a perfect fit with the existing air purifier cabinet.
• Each kit includes one (1) 3F413 Filter and one (1) set of upgrade rails.
• MERV 13 filter removes up to 95% of household dust, mold, allergens, and 92% of viruses..
• Nominal Dimensions: 16" x 25" x 3"  
• Fits Aprilaire whole-house air purifier models: 1410, 1610, 2410, 2416, 3410, 4400
• Factory original, OEM product