Finish Powerball or Geltabs – ONLY .75 PER BOX at Kroger This post may contain affiliate links. Please see the full disclosure policy here. Posted on April 28, 2013 Written by Mary Leave a Comment Finish Powerball or Geltabs are 50% off this week for at Kroger, making them just $1.99. Use the $1.25 coupon from the 4/21 SmartSource insert and pay just .75 per box!!