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Continue to ChatG438B51K0050A00 - REPLACED BY R481609474 CYLINDER ISO 6431, WITH INTEGRATED REAR MALE TRUNNION AND ALUMINIUM ROUND BARREL, B VERSION, WITH ISO 16030 GAZ PORTS, SINGLE ACTING ROD IN, CHROMED SINGLE ROD + ROD NUT, D: 50mm, NOT CUSHIONED PISTON, STROKE: 50mm, PREPARED https://www.valves-direct.com/product/numatics-g438b51k0050a00-50mm-bore-50mm-stroke-single-acting-rod-in-series-g438-round-cylinders-iso-6431/