Exact Filters 38.5 x 27.375 x 1 Pleated AC Filter, MERV 13 Performance – 12-Count

Description

Exact Filters® produces this 38-1/2 x 27-3/8 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 38-1/2 x 27-3/8 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.

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: 38-1/2 x 27-3/8 x 1″
• Actual dimensions: 38-1/2 x 27-3/8 x 3/4″
• Efficiency rating: MERV 13
• Quantity: 12 filters per carton

Common applications for a 38-1/2 x 27-3/8 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

• Made to your exact 38-1/2 x 27-3/8 x 1″ specification — no trimming or taping required at installation
• Suitable for forced-air furnaces, central AC, heat pumps, and packaged HVAC systems
• Orientation arrow printed on the frame to ensure correct airflow direction at install
• Replace approximately every 90 days in standard installations; shorter intervals in high-dust, smoky, or heavy-use environments

Same 38-1/2 x 27-3/8 x 1″ size, different efficiency rating

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