Description
When your HVAC system calls for a 29-7/8 x 21-5/8 x 1″ filter and the standard aisle doesn’t carry it, this Exact Filters® unit is cut to your exact 29-7/8 x 21-5/8 x 1″ spec — no shims, no gaps, no bypass air.
Even a quarter-inch of gap around a filter can allow a significant percentage of return air to bypass the media entirely, which is why the exact fit matters as much as the filter’s efficiency rating.
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: 29-7/8 x 21-5/8 x 1″
- Actual dimensions: 29-7/8 x 21-5/8 x 3/4″
- Efficiency rating: MERV 13
- Quantity: 12 filters per carton
This 29-7/8 x 21-5/8 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
- Sold as a 12-pack so you have a full year of replacements on hand
- 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 29-7/8 x 21-5/8 x 1″ specification — no trimming or taping required at installation
Same 29-7/8 x 21-5/8 x 1″ size, different efficiency rating
| MERV 1-4Basic dust-stop | MERV 8Standard efficiency | MERV 11Enhanced efficiency |
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Need 29-7/8 x 21-5/8 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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