Because this model includes an integral ball check limiting device

the TC-V vacuum breaker handles a maximum operating pressure of 160 psi (11 kg/cm²) and temperatures reaching 250°F (121°C)

ensuring precise fitment and electrical calibration

ensure the actual size matches the cabinet rails before sliding the new cartridge into place to avoid air bypass

McDonnell & Miller 750B-C-3 Control R-410A Because this model includes anThe McDonnell & Miller 750B C 3 is a robust cast iron liquid level control chamber designed as the modernized, high performance successor to the legacy 750 C 3 model. Engineered for demanding industrial and commercial HVAC systems, this remote mount sensor chamber (Part Number 176316) serves as a critical component in boiler water level management. Utilizing an electrode based conductance system, it is configured for use with 3 stainless steel probes