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Continue to ChatEMERSON AVENTICS 0821300353 - G1/2, Fully Automatic Drain, C/W Gauge, Series NL2-FRE Filter Pressure Regulator (NL4-FRE-G012-GAU-100-PNB-AO-05,00) https://www.valves-direct.com/product/emerson-aventics-0821300353-filter-pressure-regulator/