This spare stem mechanism is designed for use on the WM2E or BEC 75 drinkers. To install, simply screw it onto the red trough cone. We also supply spare main springs, filter discs and filter tops for this item. Please note that these valve stem assemblies are not frost resistant. If the temperature drops below zero degrees, the water will freeze and burst the plastic valve stem. We recommend that you empty all tubes & drinkers of water during prolonged periods of sub-zero temperatures.


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