Burnham Boiler 105892-01 Flow Switch Repair Kit is a replacement service kit designed to restore proper operation of compatible boiler flow switches. It works by replacing worn or damaged flow switch components, allowing the switch to accurately detect water circulation and signal the boiler when adequate flow is available. Designed for use with compatible Burnham hydronic boilers and... https://www.partshnc.com/105892-01-burnham-new-yorker-repair-kit-flow-switch