The McDonnell & Miller 312100 Replacement Gasket (Model 27T-13) is a critical sealing component engineered specifically for the 25A Series make-up water feeders

Common Questions Is the 312200 a direct replacement for the 311100 gasket

Installing this Maxitrol spring allows for fine-tuned calibration of downstream equipment

adhering to strict AHRI guidelines

Does this include the thermostat housing

Resideo 393200-1 ECO Adapter The McDonnell & Miller 312100The Resideo 393200 1 ECO Adapter is a critical component for technicians integrating high limit Energy Cutoff (ECO) switches into residential or commercial gas control circuits. Designed for seamless compatibility with the Honeywell VR8200 series and VR8300 series continuous pilot combination gas controls, this adapter also fits the VR4200 and VR4300 lines. The 393200 1 is a direct replacement for the 393200 1 U, featuring the same factory