Our Proprietary design,  electrostatic furnace filter is a long-life  filter which will last for years with proper care. The electrostatic materials we use capture dust, dirt, pollen, pet dander, allergens, pet hair, and other household irritants. The sturdy aluminum frame comes with  riveted construction, and water drain holes makes for easy cleaning. These filters should be washed every 3 months, and more frequently if you have many pets. This filter's dimensions measure 8 x 24 x 1. Merv 9 rated.

• Permanent that filter, 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, as needed,  or more frequently such as if you have a house full of  pets. 
• Many sizes available