By Pentair Pool Products
Part # 3526-08
Manufacturer Code 51013400
Aqualuminator Red Plug Cap
What is this red cap used for?
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Hello D. These are a couple of snippets from the Pentair Aqualuminator manual for the light : Now, from inside the pool, push the bulb assembly and flow director with the red cap/plug in place into the fitting body until the bulb assembly/flow director are nearly flush against the inside pool wall. AND Take the red cap/plug off and gently bring the wire connectors through the back side of the bulb assembly. Save the red cap/plug for storage and winterizing.
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