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Continue to ChatNUMATICS G438B5SK0080A00 - 50mm Bore, 80mm Stroke, G1/4, Double Acting, Series G438 Round Cylinders ISO 6431 https://www.valves-direct.com/product/numatics-g438b5sk0080a00-50mm-bore-80mm-stroke-g1-4-double-acting-series-g438-round-cylinders-iso-6431/