Opt for a Filtrete Allergen Defense Air Filter to transform your central heating and cooling system into a whole-home air filtration operation. This no-nonsense filter helps capture varying sizes of particles, from the large (lint, pollen, dust and pet dander) to the microscopic (smoke and smog). *

Manufacturer: Filtrete
Manufacturer part number: AL13-4
$14.99
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Products specifications
- Features
#1 #1 Recommended Brand* (*Filtrete Brand is the most recommended brand of HVAC Air Filters based on the US Filtrete Brand Health Tracker, Ipsos, June 2022) *
#2 The higher the MPR, the more microparticles--such as pollen, pet dander, smoke, bacteria and viruses--your filter will capture from the air passing through it *
#3 FOR OPTIMAL PERFORMANCE of your heating & cooling system or HVAC system, change your home air filter at least every 90 days for 1 in. filters *
#4 A dirty filter will slow down air flow and make the system work harder to keep you warm or cool--wasting energy. Sign-up for a filter change reminder program (www.filtrete.com/ChangeReminders) that works for you! *
#5 OUTPERFORMS FIBERGLASS, WASHABLE AND NON-ELECTROSTATIC 3-month pleated 1 in. home air filters for your furnace, air conditioner or HVAC system *
#6 DESIGNED WITH EXCLUSIVE Filtrete Brand 3-in-1 technology from 3M to trap unwanted air particles while letting cleaner air flow through *
#7 ATTRACTS AND CAPTURES particles such as lint, pollen, dust, pet dander, smoke and smog *
#8 MPR 1000 has a rating of MERV 11 *
#9 FOR RESIDENTIAL use only *
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Filtrete AL13-4 Filtrete AL13-4 24x30x1 Filtrete Filter - Quantity 44 (PK-4-EA)

$14.99