FREE Listerine Zero at CVS Print Coupon NOW This post may contain affiliate links. Please see the full disclosure policy here. Posted on August 20, 2010 Written by Mary Leave a Comment Beginning this Sunday 8/22, at CVS, when you puchase Listerine Zero you will receive a $2ECB! SCENARIO: Listerine Zero $3.99 -$2 Listerine Zero coupon here Pay $1.99 Receive a $2Ecb Final cost : FREE after ECB! Thanks Pirates of the Supermarket!