Home Store Equipment Chemicals Accessories and Supplies Shop by Brand Safety and PPE Parts Education Clearance Shop by Brand My Account Shopping Cart Contact Us About Us +2Guardian R500 Pro HEPA Filter 2.5"x18"x18"Store/Accessories and Supplies/Filters (all types)/HEPA and Air Scrubber Filters$110.0012 availableQuantity:1 Add More Add to BagGo to CheckoutSave this product for later Favorite Favorited View FavoritesGuardian R500 Pro HEPA Filter 2.5"x18"x18"Store/Accessories and Supplies/Filters (all types)/HEPA and Air Scrubber FiltersProduct DetailsMPN: JAN-HVAC180Brand: APC FILTRATION INC.Guardian R500 Pro HEPA Filter 2.5"x18"x18" HEPA air filter is the 2nd stage filtration for the GuardianR Pro 500 CFM HEPA Air Scrubber System. Part #4031864Show MoreYou May Also LikeGuardian R500 Pro HEPA Air Scrubber System by Phoenix Therma-Stor | REDGuardian R500 Pro HEPA Air Scrubber System by Phoenix Therma-Stor | REDSKU PH-G500$1,299.00 Buy NowPhoenix Focus II Dual Axial Air Mover, RedPhoenix Focus II Dual Axial Air Mover, RedSKU PH-F2-R$309.00 Buy Now