Description
Exact Filters® produces this 30-1/2 x 39-7/8 x 1″ filter to your measurements, so instead of trimming, taping, or forcing a “close enough” size into place, you drop in a filter that fits your 30-1/2 x 39-7/8 x 1″ slot the first time.
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: 30-1/2 x 39-7/8 x 1″
- Actual dimensions: 30-1/2 x 39-7/8 x 3/4″
- Efficiency rating: MERV 13
- Quantity: 12 filters per carton
The 30-1/2 x 39-7/8 x 1″ dimension is one of the many non-standard sizes we make on demand, serving both retrofit installations in older homes and light-commercial properties where the return housing dates to an older era of HVAC construction.
Features
- 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
- Orientation arrow printed on the frame to ensure correct airflow direction at install
- Pleated construction (or fiberglass, depending on MERV tier) designed for balanced capture and airflow
Same 30-1/2 x 39-7/8 x 1″ size, different efficiency rating
| MERV 1-4Basic dust-stop | MERV 8Standard efficiency | MERV 11Enhanced efficiency |
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Need 30-1/2 x 39-7/8 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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