Aprilaire 201; Space-Gard 2200, 2250; MERV 11 Replacement Alternative; Activated CarbonSGP20256ACM11 $273.56 SKU: SGP20256ACM11 Back $273.56 Quantity -+ Add to Cart Details Aprilaire 201; Space-Gard 2200, 2250; MERV 11 Replacement Alternative; Activated Carbon DetailsBackDetailsAprilaire 201; Space-Gard 2200, 2250; MERV 11 Replacement Alternative; Activated CarbonSee MoreSee Less