Mikropor DRYTEC PRO SDE-Series refrigerated compressed-air dryer with digital ECO-mode cycling control for energy savings. Integral pre- and post-filters deliver ISO 8573-1 clean, dry compressed air. Model SDE-US-PRO-1550N AC 575/3/60: MK-180 NPT-NB-ESD3-575360-AC-7012-F-DRY.