Description
When your HVAC system calls for a 36-1/8 x 33-1/8 x 1″ filter and the standard aisle doesn’t carry it, this Exact Filters® unit is cut to your exact 36-1/8 x 33-1/8 x 1″ spec — no shims, no gaps, no bypass air.
A properly fitting filter seals against the housing, so all return air is forced through the media instead of leaking around the frame.
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: 36-1/8 x 33-1/8 x 1″
- Actual dimensions: 36-1/8 x 33-1/8 x 3/4″
- Efficiency rating: MERV 13
- Quantity: 12 filters per carton
The 36-1/8 x 33-1/8 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
- Made to your exact 36-1/8 x 33-1/8 x 1″ specification — no trimming or taping required at installation
- Cardboard frame with reinforced media for structural stability during handling and installation
- Suitable for forced-air furnaces, central AC, heat pumps, and packaged HVAC systems
Same 36-1/8 x 33-1/8 x 1″ size, different efficiency rating
| MERV 1-4Basic dust-stop | MERV 8Standard efficiency | MERV 11Enhanced efficiency |
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Need 36-1/8 x 33-1/8 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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