Ending today, Kohl's offers the Waterpik Ultra Water Flosser in Black, model no. WP-114W, or White, model no. WP-110, for $59.99. Coupon code "TREEBUD" drops the price to $50.99. Plus, you'll bag $10 in Kohl's Cash. (It can be redeemed online or in-store from June 20 to June 26.) Opt for in-store pickup to avoid the $8.95 shipping fee. Assuming you'll spend the credit, that's the lowest price we could find by $9, although in March we saw it for a buck less via mail-in rebate. It features 10 settings, a 90-oz. water reservoir, and six water flosser tips.