Found Brita Pitcher Filter 4 pack Refills on Target with buy 1 get 1 50% off.
Link
Select 2 qty of 4 pack and total comes to around $23.27 + Tax with Red card and 5% subscription discount for 8 filters and Free Shipping. That’s around $2.9/filter + tax.
This is the cheapest price and even beats Costco price of $31.99 + tax for 10 filters.
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