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Continue to ChatEMERSON ASCO 54400003 - 5/2, 1.5-12, Air Operated, ISO 4, Air Return, Without Manual Tester, Series 544 Joucomatic Spool Valves - OBSOLETE - REPLACED BY AVENTICS 5814230000 https://www.valves-direct.com/product/asco-54400003-5-2-1-5-12-air-operated-air-return-without-manual-tester-series-544-joucomatic-spool-valves/