The ELECTRA SILVER Electrostatic Filter has a single peice, roll-formed silver anodized aluminum frame with a durable and attractive finish. At the heart of these electrostatic filters are multiple layers of high arresting material sandwiched between 2 layers of expanded metal. A special impregnated black polypropylene has an EPA registered anti-microbial material to inhibit mold and bacteria growth while the center non-woven layer retains debris in a maze of fibers designed to maximize flow even when soiled.

• All standard size filters are undercut by 3/8" for both length and width
• All filters have a 1/8" tolerance
• High Dust Holding Capacity
• Lifetime Warranty filter
• Rigid Silver frame
• Permanent washable lifetime filter