+3 Phoenix HEPA Filter for Phoenix GuardianR Pro HEPA system 4031864 $133.27 In stock Quantity: 1 Add to Bag Product Details Phoenix HEPA Filter for Phoenix GuardianR Pro HEPA system Aftermarket filter to replace 4031864 HEPA filter. HEPA Filtration efficiency 99.97% @ 0.3µm Save this product for later Favorite