16 1/4x21 1/2x1 Aerostar Air Filter

About this product

The 16 1/4 x 21 1/2 x 1 Aerostar is sized for a nominal opening that's one of the harder filter dimensions to source through retail channels. Actual size is 16 1/2" x 21 1/2" x 3/4". Custom and semi-custom HVAC installations often spec dimensions like this where the return opening doesn't match a standard nominal size. Three MERV grades cover the residential range. MERV 8 for baseline dust, lint, and pollen filtration. MERV 11 for pet households and mild allergy concerns. MERV 13 for fine particulate capture - smoke, bacteria, virus carriers, wildfire particulate. Pleated synthetic media construction with an electrostatic charge handles the filtration work. The pleats provide substantially more surface area than a flat fiberglass filter would offer at the same nominal size, which is what gets you the 60-to-90-day service interval in typical residential conditions. The electrostatic charge improves capture of sub-micron particles where mechanical filtration alone reaches its physical limits. Manufactured by Con-Air Industries in Orlando, Florida. Cardboard frame, reinforced to hold shape under blower suction. Custom and odd-size returns benefit from precise dimensional matching - a filter even 1/4 inch off-spec leaves a gap where unfiltered air can bypass the media entirely. This filter is sized to fit without modification.

• Pleated paper filter design: Enhances filtration efficiency by trapping airborne particles
• Disposable construction: Simplifies maintenance and replacement for users
• Compatible with most AC and furnace systems: Offers broad usability for home and office environments
• Removes dust, pollen, and bacteria: Supports healthier indoor air quality
• Available in multiple sizes: Ensures a precise fit for various vent intake requirements

Filter Material

Paper

Filter Type

Pleated

Usage Type

Disposable

Compatible Systems

Most home and office AC and furnace systems

Available Sizes

12x12x1 in, 14x14x1 in, 14x20x1 in, 16x16x1 in, 16x20x1 in, 16x25x1 in, 20x20x1 in, 20x25x1 in, 20x30x1 in, 20x35x1 in, 25x25x1 in, 25x30x1 in, 30x30x1 in

Color

White, Blue, Green

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