McDonnell & Miller 25-A Water Feeder R-410A provided the ambient temperature at

provided the ambient temperature at the actuator does not exceed 150°F

making it suitable for outdoor valve stations

long-term performance in demanding commercial environments

Technicians frequently utilize this component to resolve issues related to pen lag

the Rheem-Ruud SP12237 serves as a comprehensive sub-assembly to streamline the repair process without requiring separate component sourcing

McDonnell & Miller 25-A Water Feeder R-410A provided the ambient temperature atThe McDonnell & Miller 25 A (Part Number 126800) is a heavy duty, float operated make up water feeder specifically engineered for boiler receiver tanks and condensate return systems. Built with a rugged iron and bronze body, this mechanical feeder ensures a constant water level without the need for electrical components, making it a fail safe choice for steam boiler maintenance. It utilizes proportional feed action to deliver a steady volume of water