6pk 21x23x1 MERV-11 Air Furnace Filters

Let’s take a moment to talk about your furnace filters. You know you need to swap them out more frequently than you change swap out your standard air purifier filters. That’s because there’s a lot more air that gets pushed through these filters. With this increased amount of air comes a larger amount of debris. Thankfully, these filters are rated MERV 11, which means they’re some of the best residential filters available. Just make sure to inspect them monthly (give them a once over with the dusting brush on your vacuum if they look dirty) and then replace them completely every three months.

 

Approximate dimensions:

• 21″ x 23″ x 1″