the 46196601 is specifically calibrated for the 3-inch fan housing and shroud

cross-referenced as the 740-1-75

For potable water systems requiring lead-free compliance

The integrated manual reset function and specialized power outage feature prevent nuisance shutdowns by automatically resetting only when safe power conditions are restored

It also features a fixed differential for set-and-forget applications

McDonnell & Miller 313600 Float and Gasket THPU32HP7Y the 46196601 is specifically calibratedThe McDonnell & Miller 313600, also identified as model 37A 130, is a critical replacement float and gasket assembly engineered for 847 Series and 851 Series mechanical water feeders. As a veteran grade low water cut off part, this kit includes a high durability float, dedicated rod, and the necessary flange gasket to ensure a pressurized seal during installation. Designed for both steam and hot water boiler applications, it maintains a precise