Electrostatic Filter for Home Furnaces Washable

Electrostatic Filter for Home Furnaces – Washable – 16-3/8 x 21-1/2 x 1 Permanent filter that lasts years with proper care Electrostatic materials captures dust, dirt, pollen pet dander, allergens, pet hair, and other household irritants Heavy Duty aluminum frame with water drain holes for easy cleaning Tough and Durable construction to last years. Wash every 3 months, more frequently if you have many pets. 16-3/8 x 21-1/2 x 1