Amazon has Pure Leaf Iced Tea, Unsweetened, Real Brewed Black Tea, 0 Calories, 18.5 Ounce (Pack of 12) for $6 when you clip the 20% off coupon, and checkout with Subscribe & Save.
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Pure Leaf Iced Tea, Sweet Tea, Real Brewed Black Tea, 18.5 Ounce Bottles (Pack of 12) $6.60 S&S