York 026-43375-000 Sight Glass 30067439-890 If the vacuum breaker is

If the vacuum breaker is constantly weeping from the atmospheric vent or fails to close during pressurized flow

supplied with a natural gas orifice pre-installed and a separate LP gas orifice for Propane conversions

Precision Thermal Response: Calibrated for a strict 145 degree F open threshold to protect the burner vestibule from thermal damage

Why is a belt-type heater preferred over an insertion heater

York 026-43375-000 Sight Glass 30067439-890 If the vacuum breaker isEnsure critical system diagnostics with the York 026 43375 000 Sight Glass, an essential OEM replacement part engineered for high pressure refrigeration and HVAC environments. Designed primarily for York air cooled screw liquid chillers, this sight glass with gasket provides a clear, high visibility window into the liquid line, allowing technicians to monitor refrigerant flow and charge levels in real time. The precision machined assembly includes a