Description
This 39-3/8 x 28-1/4 x 1″ Exact Filters® air filter is manufactured to your exact dimensions, eliminating the guesswork of matching an off-the-shelf filter to a non-standard 39-3/8 x 28-1/4 x 1″ opening.
Filter bypass — air slipping past a loose frame instead of through the pleats — is one of the most common reasons a filter underperforms its MERV rating in the real world. A precise fit closes that gap.
At MERV 13, this filter removes a significantly larger share of fine particulate from your return air than standard mid-efficiency ratings — including smoke, bacteria-sized particles, and the fine dust that tends to resettle faster after cleaning. Because the media is denser, a properly sized HVAC system matters: check your blower’s static-pressure headroom before upgrading.
Specifications
- Nominal size: 39-3/8 x 28-1/4 x 1″
- Actual dimensions: 39-3/8 x 28-1/4 x 3/4″
- Efficiency rating: MERV 13
- Quantity: 12 filters per carton
This 39-3/8 x 28-1/4 x 1″ filter size is frequently ordered by homeowners with older systems, property managers handling mixed-vintage HVAC equipment, and facilities maintenance teams servicing buildings where no two return grilles seem to measure the same.
Features
- Cardboard frame with reinforced media for structural stability during handling and installation
- Made to your exact 39-3/8 x 28-1/4 x 1″ specification — no trimming or taping required at installation
- Replace approximately every 90 days in standard installations; shorter intervals in high-dust, smoky, or heavy-use environments
- Sold as a 12-pack so you have a full year of replacements on hand
Same 39-3/8 x 28-1/4 x 1″ size, different efficiency rating
| MERV 1-4Basic dust-stop | MERV 8Standard efficiency | MERV 11Enhanced efficiency |
|
Need 39-3/8 x 28-1/4 x 2″ or another depth? This size is available in other depths we don’t stock online — reach out and our team will quote it for you, typically same business day.
|
Explore more from our collection.
Reviews
There are no reviews yet.