Merv 13 Pleated Air Filter - 17 7/8" x 19 7/8" x 1" Quantity:12-pack This is designed to fit

This is designed to fit into 1" Return Air Grilles

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You never have to hassle with disposable filters that will end up in a landfill again

Magnetic mount holds lamp in place

Merv 13 Pleated Air Filter - 17 7/8" x 19 7/8" x 1" Quantity:12-pack This is designed to fitAny Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop, and long service life which reduces HVAC equipment maintenance and energy costs. A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter.