12x20x1 Aerostar Air Filter

About this product

Need a 12x20x1 that actually fits your return? This Aerostar comes in at 11 1/2" x 19 1/2" x 3/4", matching the real opening in most furnace and air handler returns where a nominal 12x20x1 is specified. The half-inch undersize on each dimension is industry standard and keeps the filter from wedging in the grille track. Three MERV options let you match the filter to what your household actually needs. MERV 8 covers basic dust, pollen, and lint at the lowest static pressure. MERV 11 captures pet dander, smoke residue, and finer allergens. MERV 13 takes care of wildfire smoke, bacterial particles, and the sub-micron range. The construction is pleated electrostatic media in a cardboard frame, manufactured by Con-Air Industries in Orlando. The electrostatic charge gives the filter a measurable advantage at catching particles smaller than the physical weave would otherwise stop. Pleated media holds substantially more debris than flat panel filters, so a single 12x20x1 Aerostar typically lasts 60 to 90 days in a household running standard MERV 8 or 11 grades. Higher MERV 13 grades clog faster and want a change closer to every 30 to 60 days under similar conditions.

• Industry-standard 12x20x1 sizing ensures compatibility with most furnace and air handler returns
• Available in MERV 8, 11, and 13 for tailored filtration needs
• Pleated electrostatic media increases capture of fine particles and improves static pressure
• Cardboard frame construction for easy disposal and maintenance
• Pleated media holds more debris than flat panel filters, extending filter life

Dimensions

11.5 x 19.5 x 0.75 in (12x20x1 nominal, 0.5 in undersized on each dimension)

Material

Cardboard frame with electrostatic media

MERV Options

8, 11, 13

Usage Type

Disposable

Color

White, Gray

Photos, details and ratings from Air Filters Delivered, through Shopify.