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Continue to ChatNUMATICS 34200061 - 0-4Bar, 1/8 ISO 7/1 Rc, 50mm Face Diameter, Round Gauge, Series 652 Accessories https://www.valves-direct.com/product/numatics-34200061-0-4bar-1-8-iso-7-1-rc-50mm-face-diameter-round-gauge-series-652-accessories/