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Continue to ChatDeltrol Fluid SM-210 - NPT 1/4, 7 GPM, Fine Metering, Carbon Steel, Max PSI 5000 (345 Bar), Series S High Pressure Adjustable Needle Valve https://www.pneutrol.com/industrialspares/product/deltrol-fluid-sm-210-npt-1-4-7-gpm-fine-metering-carbon-steel-max-psi-5000-345-bar-series-s-high-pressure-adjustable-needle-valve/