Description
Designed for homeowners and facilities managers dealing with an unusual 30-1/8 x 36-1/4 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 targets the fine particulate fraction that lower MERV ratings allow through — including smoke, bacteria-carrying dust, and combustion byproducts. Airflow resistance is higher than MERV 8 or 11, so systems with borderline static pressure should be evaluated before switching up.
Specifications
- Nominal size: 30-1/8 x 36-1/4 x 1″
- Actual dimensions: 30-1/8 x 36-1/4 x 3/4″
- Efficiency rating: MERV 13
- Quantity: 12 filters per carton
This 30-1/8 x 36-1/4 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
- Orientation arrow printed on the frame to ensure correct airflow direction at install
- Replace approximately every 90 days in standard installations; shorter intervals in high-dust, smoky, or heavy-use environments
- Cardboard frame with reinforced media for structural stability during handling and installation
- Pleated construction (or fiberglass, depending on MERV tier) designed for balanced capture and airflow
Same 30-1/8 x 36-1/4 x 1″ size, different efficiency rating
| MERV 1-4Basic dust-stop | MERV 8Standard efficiency | MERV 11Enhanced efficiency |
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Need 30-1/8 x 36-1/4 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.
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