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Amazon [amazon.com] has 3-Count Brita Plus Water Filter for $ 21.79 – 25% when you ‘clip’ the coupon on product page = $ 16.34. Shipping is free with Prime or on $ 35+ orders.

Price:
$ 5.45 lower (25% savings) than the list price of $ 21.79
25% coupon applied at checkout. Subscribe & Save orders only.
To check eligibility and activate coupon click here [amazon.com].