$1 in Savings on Crest Mouthwash Posted by Harbor Master on 6 July 2017, 1:41 pm Tweet Expired Ex. 30 days from print (print limit is two of each coupon) (Coupon states limit of One Identical coupon per household per day) Click here to print $.50 off One Crest Pro-Health Mouthwash 237ml or larger (excludes trial/travel size) Click here to print $.50 off One Crest 3D Whitening Mouthwash 237ml or larger (excludes trial/travel size) Click here to print Both Coupons