At Symmons, we use the highest quality parts from the inside out; every collection is backed by a customer first culture. This shower spindle was designed for Symmons SafetyMix valves and is made to ensure a quick and simple installation. The flow control spindle is made of solid brass, with a stainless steel piston, and automatically adjusts to balance the hot and cold water pressure. Like all Symmons products, this shower spindle is backed by a limited lifetime consumer warranty and 10 year warranty for commercial use.