| The 091-9-090 Auto Drain AC HP contains all the components required for a moisture trap that is to be installed on the 091-9HP air compressor. A normally open solenoid valve drains the moisture from the trap each time the compressor shuts down. Easily installed on any 091-9HP, Auto Pump HP, the Auto Drain AC HP assures that the filter bowl is always drained and does this without intervention by maintenance personnel. |