Stop by Walmart to score free Listerine UltraClean Flossers! You can get free Listerine UltraClean Flossers at Walmart right now! Here’s how: Listerine UltraClean Flosser – $1.97 Use $1/1 printable (Limit 1) Submit $1 from Ibotta for buying a Listerine UltraClean Flosser (limit three) Free after coupon and rebate Thanks, Hip2Save!