Semi-Auto Drain: Some of the units come with a semi-auto drain feature, which automatically drains accumulated liquids when there is no pressure. This helps to remove moisture and prevent damage to the system. It is important to keep the liquid level below the indicated maximum drain line.
Gauge and Bracket: Each unit includes a pressure gauge with a visible dial scale, allowing accurate pressure measurement. The gauge provides measurement in both psi and bar units. A convenient bracket is also provided for easy mounting of the filter regulator.