Filtrete HVAC Air Filters: 4-Pk 12x30x1 MERV 11 $23.90, 6-Pk 20x30x1 MERV 13 $43.50 & More

Amazon [amazon.com] has *2-Pack Filtrete 20x20x1 Air Filter, MERV 12, MPR 1500* for $20.40 - 5% when you check out via Subscribe & Save = *$19.38*. *Shipping is free* with Prime or on $35+...