AquaFinesse redesigned its full-size (3 to 5 month) hot tub kids and two liter bottles of Hot Tub Water Care Solution. The new bottle design, which is taller and narrower, has a more condensed fit inside the new, shorter, sturdier hot tub kit box. This allows for better stacking, shipping, and storage. Contact: AquaFinesse, 704.838.8111;