McDonnell & Miller 311200 Float and Gasket R-410A Heavy-Duty Construction: Features stainless steel

Heavy-Duty Construction: Features stainless steel diaphragms electrically welded together for maximum sensitivity and fatigue resistance

When performing actuator diaphragm replacement

ensuring the logic circuits receive consistent amperage during peak cycling

Broad Compatibility: Specifically engineered for the robust ASCO Series 300 lineup

Continuous exposure to combustion byproducts or cracked ceramic insulation are typical failure points

McDonnell & Miller 311200 Float and Gasket R-410A Heavy-Duty Construction: Features stainless steelThe McDonnell & Miller 311200 Float and Gasket is a critical OEM replacement kit for Series 21 (Model 21 30) mechanical water feeders. As a veteran grade boiler replacement part, this assembly is engineered to maintain precise fluid level control in condensate receiver tanks and industrial boiler systems. The 4 3 4 copper float and high grade replacement gasket ensure a professional grade seal and reliable proportional feed action. Supporting a