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Continue to ChatDeltrol Fluid NC-04-S -SAE 4, Carbon Steel, Max PSI 3000 (207 Bar), Series NC Adjustable Needle Valve https://www.pneutrol.com/industrialspares/product/deltrol-fluid-nc-04-s-sae-4-carbon-steel-max-psi-3000-207-bar-series-nc-adjustable-needle-valve/