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Continue to ChatNUMATICS P493A4111000A00 - 40mm Bore, Centre Trunnion, MT4, Cast Iron, Series 493 Standardised Mountings https://www.valves-direct.com/product/numatics-p493a4111000a00-40mm-bore-centre-trunnion-mt4-cast-iron-series-493-standardised-mountings/