The OS&B 1/4″-20 Stem Assembly Clicker is a critical component used in bathtub drain mechanisms to control the opening and closing of the drain. This stem assembly includes the clicker mechanism, which engages with the drain stopper to either allow or restrict water flow. It is designed with a 1/4″-20 thread size, ensuring compatibility with standard bathtub drain configurations. Ideal for repair and replacement projects, the OS&B Stem Assembly Clicker ensures smooth operation of bathtub drains, providing reliability and durability to maintain proper drainage functionality.