WAREHOUSE DEAL 20x23x1 Exact Filters Pleated MERV 11 (12 pack)

Exact Filters® produces this 20 x 23 x 1″ filter to your measurements, so instead of trimming, taping, or forcing a "close enough" size into place, you drop in a filter that fits your 20 x 23 x 1″ slot the first time. Filter bypass — air slipping past a loose frame instead of through the pleats — is one of the most common reasons a filter underperforms its MERV rating in the real world. A precise fit closes that gap. This MERV 11 pleated filter is engineered for buildings where filtration matters — allergy-prone households, sites with pets, properties near construction or agriculture, light-commercial spaces with elevated particulate loads — but where the HVAC system wasn't originally specified for the higher static pressure of a MERV 13. Specifications Nominal size: 20 x 23 x 1″ Actual dimensions: 20 x 23 x 3/4″ Efficiency rating: MERV 11 Quantity: 12 filters per carton Common applications for a 20 x 23 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 Suitable for forced-air furnaces, central AC, heat pumps, and packaged HVAC systems Replace approximately every 90 days in standard installations; shorter intervals in high-dust, smoky, or heavy-use environments Pleated construction (or fiberglass, depending on MERV tier) designed for balanced capture and airflow Made to your exact 20 x 23 x 1″ specification — no trimming or taping required at installation Same 20 x 23 x 1″ size, different efficiency rating MERV 1-4Basic dust-stop MERV 8Standard efficiency MERV 13Highest efficiency Need 20 x 23 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. Call 866-469-8556 Contact us for a quote