+3 Hepa Filter, 16X19X2 Hepa, Fits Dri-Eaz Hepa 500 Defendair Scrubber 111192 $181.38 In stock Quantity: 1 Add to Bag Product Details UPC: 0.00 Brand: no Hepa Filter, 16X19X2 Hepa 500 & Triad AFD HEPA 500 filters combine filtration ability with filter capacity. To maximize HEPA filter life, be sure to change the prefilters regularly. This filter has an efficiency rating of 99.97% against 0.3 micron oily aerosol particles. Save this product for later Favorite