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Continue to ChatASCO S353A710 - 2/2 NC, G3/4, Orifice Size 20mm, Quick Mount On Inlet & Outlet, NBR, Series 353 - ASCO Dust Collector Remote Pilot https://www.valves-direct.com/product/asco-s353a710-2-2-nc-g3-4-orifice-size-20mm-quick-mount-on-inlet-outlet-nbr-series-353-asco-dust-collector-remote-pilot/