True Blue 18 In. x 24 In. x 1 In. Merv 2 Fiberglass Furnace Filter Pack of 12
This fiberglass air filter is a MERV 2 rating. This filter offers system protection. Filter lasts up to 30 days.
True Blue 118241 18×24 x 1 In. Fiberglass Air Filter, 30 Days – Quantity 12
True Blue 18″x24″x1″ Fiberglass MERV Rating 2 30 Day Filter. It is effective against pollen and dust/lint. This filter reduces dust and dirt buildup in air ducts, air conditioners and furnaces.