NBAF 24x20x2 Washable Permanent Electrostatic HVAC Air / Furnace Filter — MERV 8 (2 Inch)

The last HVAC filter you’ll ever have to buy for this system.

NBAF’s SILVER-series 2-inch washable electrostatic filter is a drop-in replacement for your disposable filter that pays for itself in months and lasts for years. Simply rinse it off every 4-6 weeks and put it back in. No electricity required. No housing retrofit needed.

Why customers love this filter

• Permanent, washable design — clean it with a vacuum or garden hose every 4-6 weeks and reuse indefinitely.
• 3-stage filtration — layers of polypropylene develop a natural electrostatic charge as air passes through, capturing dust, pollen, and allergens.
• MERV 8 rating with a 94.7% peak arrestance — captures more particulates than a typical disposable filter.
• Extremely low air resistance — initial resistance of just 0.12″ WG, lower than most disposable filters, meaning better airflow and lower energy costs.
• Drop-in replacement — actual thickness is 1-3/4″, fits standard 2″ filter housings with no retrofitting.
• Trusted by commercial fleets — used by NASA, Boeing, US Coast Guard, McDonald’s, and oil tanker fleets.

Cost savings

Two-inch disposable filters have gotten expensive, and facility managers are switching to washables for the massive cost savings. One well-known university switched 600 disposable filters to washable and saved $400,000 over 5 years. Even for a home, the ROI is typically less than one year.

Full specifications

• MERV Rating: 8
• Peak Arrestance: 94.7%
• Initial Resistance: 0.12″ WG
• Dust Holding Capacity: 165 grams
• Airflow Rate: 300 FPM
• End Point of Test: 0.50″ WG
• Actual Thickness: 1-3/4″
• Frame: Premium extruded aluminum, gold anodized
• Media: Multiple layers of woven polypropylene with self-charging polyester

Care and cleaning

Simply remove the filter every 4-6 weeks (or more often in high-dust environments) and clean by either vacuuming both sides or rinsing with water. Air-dry and reinstall. No detergents or chemicals required.

Shipping and handling

Ships in 5-7 business days via UPS/USPS. Free shipping on all orders. Backed by our 100% satisfaction guarantee.