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Continue to ChatNUMATICS G438B6SK0200A00 - 63mm Bore, 200mm Stroke, G3/8, Double Acting, Series G438 Round Cylinders ISO 6431 https://www.valves-direct.com/product/numatics-g438b6sk0200a00-63mm-bore-200mm-stroke-g3-8-double-acting-series-g438-round-cylinders-iso-6431/