Description
This air filter is made to a 28 x 32 x 1″ nominal size for HVAC systems, air handlers, and return grilles that require an exact custom dimension rather than a standard retail size.
A properly fitting filter seals against the housing, so all return air is forced through the media instead of leaking around the frame.
MERV 11 sits in the sweet spot for “upgraded” filtration: substantially better particle capture than MERV 8, without the static-pressure concerns that come with MERV 13 on older or undersized systems. It’s the rating we recommend most often to customers asking “what should I step up to?”
Specifications
- Nominal size: 28 x 32 x 1″
- Actual dimensions: 27-7/8 x 31-7/8 x 3/4″
- Efficiency rating: MERV 11
- Quantity: 12 filters per carton
Common applications for a 28 x 32 x 1″ custom filter include retrofit installations, legacy HVAC systems installed before standard sizes were codified, built-in return grilles that were framed to non-standard dimensions, and commercial unit housings that don’t match any current off-the-shelf size.
Features
- Pleated construction (or fiberglass, depending on MERV tier) designed for balanced capture and airflow
- Made to your exact 28 x 32 x 1″ specification — no trimming or taping required at installation
- Orientation arrow printed on the frame to ensure correct airflow direction at install
- Cardboard frame with reinforced media for structural stability during handling and installation
Same 28 x 32 x 1″ size, different efficiency rating
| MERV 1-4Basic dust-stop | MERV 8Standard efficiency | MERV 13Highest efficiency |
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Need 28 x 32 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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