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Amazon [amazon.com] has 2-Pack 16-Oz TheraBreath Healthy Gums Mouthwash (Clean Mint) for $10.42 – 5% when you check out via Subscribe & Save = $9.90.
Shipping is free with Prime or on $35+ orders.

Subscribe & Save
5%: $9.90 – $4.95/ea
15%: $8.86 – $4.43/ea
Add to next delivery [amazon.com] (with free shipping)