4Moms Cleanwater Tub, 3-In-1 Grow-With-Me Baby Bathtub With Digital Thermometer 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 comfort zone, maintaining the perfect temperature for your baby. The cleanwater tub grows with baby in 3 stages, making it the only tub you will ever need. Stage 1: Newborn - use the newborn insert included to ensure a snug and secure fit for smaller babies (0-3 months; up to 15lbs); Stage 2: Infant ? remove the newborn insert for a more comfortable fit as baby gets bigger (3-6 months or until baby can sit up unassisted); Stage 3: Older Babies ? once baby begins to sit up, move the cleanwater tub to the adult tub to keep your growing baby secure and well positioned during bathtime (6+ months). The newborn insert and rinse cup are included. CLEAN WATER IN, DIRTY WATER OUT: 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. Rinse cup included. COLOR-CODED DIGITAL THERMOMETER: 4moms tub features a built-in color-coded digital thermometer to help you identify a comfort zone, maintaining the perfect water temperature for your baby. With its red (too hot), blue (too cold) and green (just right) color indicators, it's never been easier to find the right temp for baby. GROW-WITH-ME FEATURES: The Cleanwater Bath Tub grows with your infant in 3 stages, making it the only tub you will ever need. Stage 1 (Newborns): Includes a newborn insert to ensure a snug and secure fit for smaller babies, up to 15 lbs. Stage 2 (Infants): Remove the insert for a more comfortable fit as baby grows or until baby can sit up unassisted. Stage 3 (Older Babies/Young Toddlers): Use the Cleanwater Tub in the adult bathtub to keep your growing baby secure and well positioned during bathtime. FITS MOST SINKS: The infant tub was designed to fit most single- and double-basin kitchen sinks. It also can be used within a standard adult bathtub. Dimensions: 31.5" L x 16.5" W x 8.5" D. WHAT'S IN THE BOX: Each purchase includes the 4moms Cleanwater Tub, the newborn insert, and one rinse cup. Please note the bathtub requires 2 AAA batteries (not included).