A DealNews exclusive! 13 Deals offers this Joy Miracle Clean Water Filter Bottle 4-Pack in random colors (Red pictured) bundled with 10 extra filters for $24.99. Coupon code "DN-JOY" cuts it to $19.99. With free shipping, that's the lowest price we could find for this quantity of water bottle sets alone (not counting the 10 extra filters) by $20. Each of these sets includes a water bottle, filter funnel, carrying case, and two filters. The 10 extra filters brings the total number of filters to 18.