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Continue to ChatNUMATICS G441A62K0040AT1 - 63mm Bore, 40mm Stroke, Through Rod, ATEX Zone 1/21, Series G441 Short Stroke Cylinders https://www.valves-direct.com/product/numatics-g441a62k0040at1-63mm-bore-40mm-stroke-through-rod-atex-zone-1-21-series-g441-short-stroke-cylinders/