The Rheem SP13763AB Dip Tube is designed for water heaters, featuring a 3/4 inch diameter and a length of 21 inches. This essential component ensures efficient water flow and temperature regulation within your heating system. Made from durable materials, it meets industry standards for performance and reliability. Ideal for Rheem water heater models, this dip tube is crucial for maintaining optimal heating efficiency and preventing sediment buildup. Upgrade your water heater with this high-quality dip tube for improved functionality.