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Continue to ChatJOUCOMATIC 445500040400 - 20mm Bore, 400mm Stroke, STN20NA400DM, Series 445 Rodless Cylinders Non Guided Carrier (Type STN) https://www.valves-direct.com/product/joucomatic-445500040400-20mm-bore-400mm-stroke-stn20na400dm-series-445-rodless-cylinders-non-guided-carrier-type-stn/