making it suitable for standard domestic grids and international equipment setups

Versatile Compatibility: Supports multiple valve strokes and operating spans (3

this unit operates on an open high action

maintaining the BTU input and gas-to-air mixture integrity required for peak furnace performance

McDonnell & Miller 193-D-1 Replacement Casting Refrigerant making it suitable for standardThe McDonnell & Miller 193 D 1 Replacement Casting is a critical structural component engineered specifically for Series 193 combination low water cut off and pump controllers. This high grade casting provides the necessary housing for float operated mechanisms used in commercial steam boiler applications. Designed with 1 inch NPT tappings, the 193 D 1 ensures a secure, leak proof interface with equalizing piping, maintaining the integrity of the