COMPRESSED AIR FILTER G SERIES Home > COMPRESSED AIR FILTERS > COMPRESSED AIR FILTER G SERIES FEATURES The air filters have four efficiency ratings,removing contaminants as small 0.01 micron at up to 290 psi (20 bar)- 1/4” to 3” NPT/BSP pipe sizes. A protected auto float drain (2 mm orifice) is standard for optimal and reliable removal of liquid contaminants. These air filters have a zero-porosity aluminium and durable epoxy powder-coat finish, along with a corrosion-resistant internal coating for a long service life. Filter combinations are configured to meet specific application requirements. Filters comply with PED and perform as per related ISO 8573 standards. These filters may be equipped with differential pressure gauges for easy maintenance and energy efficiency.