Description
When your HVAC system calls for a 38-3/8 x 35-3/8 x 1″ filter and the standard aisle doesn’t carry it, this Exact Filters® unit is cut to your exact 38-3/8 x 35-3/8 x 1″ spec — no shims, no gaps, no bypass air.
A custom-cut filter keeps every cubic foot of return air flowing through the media rather than around it, which is the foundation of any effective filtration setup.
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: 38-3/8 x 35-3/8 x 1″
- Actual dimensions: 38-3/8 x 35-3/8 x 3/4″
- Efficiency rating: MERV 13
- Quantity: 12 filters per carton
The 38-3/8 x 35-3/8 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
- Orientation arrow printed on the frame to ensure correct airflow direction at install
- Suitable for forced-air furnaces, central AC, heat pumps, and packaged HVAC systems
- Made to your exact 38-3/8 x 35-3/8 x 1″ specification — no trimming or taping required at installation
Same 38-3/8 x 35-3/8 x 1″ size, different efficiency rating
| MERV 1-4Basic dust-stop | MERV 8Standard efficiency | MERV 11Enhanced efficiency |
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Need 38-3/8 x 35-3/8 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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