Una Dyn (Universal Dynamics) model DHD-15 desiccant dryer, S/N DHD1572109, 510 process CFM dual auto-regenerating desiccant beds 5 HP process blower. 1/2 HP regeneration blower, 460V/3ph/60Hz operation, 67 full connected amp load, 54 kVA. Mounted on a unitized base with filter chamber. Includes after heater.