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Continue to ChatASCO G353A046GD - G1 1/2, 2/2 NC, Threaded, ATEX ll2G/D, Series 353 - ASCO Dust Collector Pulse Valves https://www.valves-direct.com/product/asco-g353a046gd-g1-1-2-2-2-nc-threaded-atex-ll2g-d-series-353-asco-dust-collector-pulse-valves/