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Continue to ChatAVENTICS - 5801680000 - Intermediate plate for separate air supply, ports 2 and 4 on bottom (ISO SUB BASE G 1/4) https://www.valves-direct.com/product/aventics-5801680000-intermediate-plate-for-separate-air-supply-ports-2-and-4-on-bottom-iso-sub-base-g-1-4/