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Continue to ChatAVENTICS - 0821003025 - Pilot-operated non-return valve, Series NR02 (NON-RETURN VALVE C.A.R PILOTE G 1/8) https://www.valves-direct.com/product/aventics-0821003025-pilot-operated-non-return-valve-series-nr02-non-return-valve-c-a-r-pilote-g-1-8/