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Continue to ChatNUMATICS P493AL42A000A00 - 20mm Bore, Front or Rear Flange, Steel Body, Series G435 Round Cylinders ISO6432 https://www.valves-direct.com/product/numatics-p493al42a000a00-20mm-bore-front-or-rear-flange-steel-body-series-g435-round-cylinders-iso6432/