21x5.5x5.5 (22x5.5x5.5) MERV 13

American Standard Aftermarket Replacement Filter

• Approximately 21"(L).
• 1 filters per case.
• MERV 13
• High efficiency filter media collects small dust particles before they can collect on your coils.
• For retrofit kit model numbers that begin with BAYFTAH. These filters are designed to work with the Trane Retrofit Frame Kit. You must already have the Retrofit Frame Kit for these filters to work in your unit.
• Also known as: BAYFTAHEXM / BAYFTAHEXM2A.
• Replace every 6 months.
• What is MERV

Merv 13 efficiency rated furnace filters and AC filters can clean your home's air of pet dander, microscopic allergens, virus carriers, pollen, household dust, cigarette smoke, mold spores and more. Pet dander, mold, secondhand smoke, household cleaning products and more all contribute to dirty air inside your home. The fact that people spend 90% of their time indoors, and that the air inside is often more dirty than the air outside, led the EPA to name Indoor Air Quality (IAQ) as a top five environmental health risk. Change your home air filters regularly to prevent temporary and long-term negative health effects from breathing in dirty air.