LEVOIT Core 300 Air Purifier Replacement Filter (Core300-RF) $19.45

Amazon has LEVOIT Core 300 Air Purifier Replacement Filter (Core300-RF) for $19.45. Shipping is free w/ Prime or on $35+ orders. Walmart has LEVOIT Core 300 Air Purifier Replacement Filter (Core300-RF) for $19.45. Shipping is free w/ Walmart+ (free 30-day trial) or on orders of $35+.