Description
The AprilAire UK311 is a direct replacement for the sunsetting AprilAire 310 filter, featuring new TriPure Technology in a 3″ MERV 11 air filter along with a free, one-time set of upgrade rails for easy installation into your existing air purifier cabinet. The upgrade rails slide smoothly into place with no tools needed, and the easy-glide system simplifies future filter changes — the compatible upgrade rail and filter ship conveniently packaged together as a one-time upgrade. This filter is designed to fit all compatible AprilAire 4″ whole-house air purifier cabinets. TriPure Technology delivers advanced filtration with a MERV 11 rating, capturing up to 92% of household dust, pollen, mold spores, pet dander, and other airborne allergens. The filter is also designed for improved energy efficiency, delivering up to 30% lower airflow resistance than leading brands, and offers a long filter life of up to 12 months — up to 2x longer than other leading brands. A redesigned rail and media interface with directional design helps reduce installation errors for a fast, hassle-free replacement process. AprilAire is a proud partner of the American Lung Association in support of its mission to improve lung health (the American Lung Association does not endorse any specific product, device, or service). The UK311 is backed by a 5-year media air cleaner warranty plus AprilAire’s 10-year Clean-Coil Commitment, which includes $100 toward professional coil cleaning. The Healthy Air App (available on the App Store and Google Play) can be used to schedule filter replacement reminders and learn more about maintaining indoor air quality. Genuine AprilAire filters are designed and made in the USA.
Features:
- Direct replacement for the sunsetting AprilAire 310 filter with TriPure Technology
- One-time upgrade rails included — no tools needed, easy-glide installation
- Fits all compatible AprilAire 4″ whole-house air purifier cabinets
- MERV 11 rated filtration
- Captures up to 92% of household dust, pollen, mold spores, pet dander, and other allergens
- Up to 30% lower airflow resistance than leading brands for improved energy efficiency
- Filter life up to 12 months — up to 2x longer than other leading brands
- Redesigned rail and media interface with directional design reduces installation errors
- Proud partner of the American Lung Association
- Compatible with the Healthy Air App for replacement reminders
- Designed and made in the USA
Specifications:
- Model: UK311 (replaces 310)
- Compatible Models: 1310, 2310, 3310, 4300, U131, U233
- MERV Rating: 11
- Materials: Plastic, synthetic fiber
- Filtration Targets: Dust, dander, mold, pollen, dust mites, smoke
- Nominal Measurements: 20″H x 20″W x 3″D
- Actual Measurements: 20.61″H x 21.75″W x 3.68″D
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