Needle Valve

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    Control the flow of your calcium reactor, drip line and feed lines accurately with the Vertex Precision Needle Valve. Quality grey PVC for durabiliy Teflon seal for leak-free operation 1/4" Push connect fittings Large black polyester knob to control flow easily


    Hayward Needle Valves are used for extremely accurate metering of fluids from full flow down to a few drops per minute. Thread x Thread Ultra precise control Corrosion resistant

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    …market that we could find. Instead of traditional needle valves controlling the flow rate, the CarbonDoser uses an electric solenoid that will open and close within a fraction of a second producing a single bubble. Since there is no needle valve, the CarbonDoser's bubble rate will never change. You…

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