Individual sub-base NAU-3/8-2B-ISO With port pattern as per DIN ISO 5599/1, external dimensions as per VDMA 24345, connections underneath. Conforms to standard=ISO 5599-1, Authorisation=UL - Recognized (OL), Product weight=450 g, Mounting type=with through hole, Auxiliary pilot air port 12/14=G1/8