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Continue to ChatASCO E290B080 - G3/4, NC, DN20, Operator Diameter 63mm, Entry Above Disc, Series E290 Pressure Operated Piston Valve https://www.valves-direct.com/product/asco-e290b080-g3-4-nc-dn20-operator-diameter-63mm-entry-above-disc-series-e290-pressure-operated-piston-valve/