Description
Designed for homeowners and facilities managers dealing with an unusual 31-1/4 x 25 x 1″ filter housing, this Exact Filters® filter is produced on-demand to fit your opening precisely.
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.
MERV 13 is the top efficiency offered in the Exact Filters® line. It captures the broadest range of airborne particles we make, including fine dust, smoke particles, and the submicron fraction that carries many allergens and bioaerosols. Buildings dealing with wildfire smoke, indoor air-quality concerns, or sensitive occupants commonly step up to this rating.
Specifications
- Nominal size: 31-1/4 x 25 x 1″
- Actual dimensions: 31-1/4 x 25 x 3/4″
- Efficiency rating: MERV 13
- Quantity: 12 filters per carton
Customers typically order a 31-1/4 x 25 x 1″ custom filter because their system is older, was built by a regional manufacturer, was retrofitted, or was framed on-site by an installer who didn’t conform to a standard filter dimension. If that describes your situation, you’re in the right place.
Features
- Cardboard frame with reinforced media for structural stability during handling and installation
- Orientation arrow printed on the frame to ensure correct airflow direction at install
- Made to your exact 31-1/4 x 25 x 1″ specification — no trimming or taping required at installation
- Pleated construction (or fiberglass, depending on MERV tier) designed for balanced capture and airflow
Same 31-1/4 x 25 x 1″ size, different efficiency rating
| MERV 1-4Basic dust-stop | MERV 8Standard efficiency | MERV 11Enhanced efficiency |
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Need 31-1/4 x 25 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.
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