Aqua Ultraviolet® EZ Twist Winterizing Cap
Aqua Ultraviolet® EZ Twist Winterizing Cap
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This cap is a wonderful problem solver.   Just unscrew the entire EZ Twist Cap assembly with all of the glass tubes, bulbs and cords attached.  Then replace it for the winter with this solid cap and O-ring.    You can still run your pump and your system will be closed even while you take the fragile electronic and glass parts safely indoors for the winter.

Part # A40007