Toto THP4648#CP Polished Chrome Hand Shower Base - Replacement Part. Toto takes pride in providing their customers with quality plumbing products that are durable, dependable and visually pleasing. This line of Genuine Replacement Parts are developed to perform and last the way the they were originally intended too. This Toto THP4648#CP Polished Chrome Hand Shower Base is a Toto Genuine Replacement Part designed for Hand Shower Systems. This Base allows you to place your hand shower in a safe and secure place when using and when you are finished.