Some parents feel comfortable holding their baby without a baby tub, but most find comfort and ease in using a special tub sized for their little one. The 4moms Cleanwater Tub features a unique design which provides a constant flow of clean water. The clean water reservoir holds fresh water for rinsing while dirty water flows out of the side drain. The built-in color-coded digital thermometer helps you identify a comfort zone, maintaining the perfect temperature for your baby.