Built to order in the precise 29-7/8 x 40 x 1 dimension you need, this Exact Filters air filter solves a problem standard catalogs can’t a true custom fit for systems that don’t accept common filter sizes.
A properly fitting filter seals against the housing, so all return air is forced through the media instead of leaking around the frame.
At MERV 13, this filter removes a significantly larger share of fine particulate from your return air than standard mid-efficiency ratings including smoke, bacteria-sized particles, and the fine dust that tends to resettle faster after cleaning. Because the media is denser, a properly sized HVAC system matters: check your blower’s static-pressure headroom before upgrading.
Specifications
- Nominal size: 29-7/8 x 40 x 1
- Actual dimensions: 29-7/8 x 40 x 3/4
- Efficiency rating: MERV 13
- Quantity: 12 filters per carton
Customers typically order a 29-7/8 x 40 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
- Pleated construction (or fiberglass, depending on MERV tier) designed for balanced capture and airflow
- Made to your exact 29-7/8 x 40 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 29-7/8 x 40 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 40 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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