and HC33GE236A

typically used to provide physical position confirmation back to the VAV controller

Is the EK165 compatible with R-410A systems

Professional Grade Reliability: Engineered as a durable alternative to battery-only operation or "power-stealing" thermostat configurations

Viessmann 7133088 Oil Filter Insert R-134A and HC33GE236AThe Viessmann 7133088 Oil Filter Insert is a critical OEM replacement part engineered for high performance fuel filtration in residential and commercial heating systems. Designed specifically for Viessmann Chassis oil burners and Vitoflame 100 VEM 18 40 series, this cartridge ensures that the oil burner nozzle receives a steady supply of contaminant free fuel. By trapping microscopic sediment and sludge, the 7133088 oil filter prevents irregular flame