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Continue to ChatNUMATICS G438B51K0025A00 - 50mm Bore, 25mm Stroke, Single Acting Rod In, Series G438 Round Cylinders ISO 6431 https://www.valves-direct.com/product/numatics-g438b51k0025a00-50mm-bore-25mm-stroke-single-acting-rod-in-series-g438-round-cylinders-iso-6431/