Winter Duck Plug

 allows plumbing lines to be winterized without draining the pool. The patent-pending "duck-bill" valve allows a large flow of air and water to be blown from the return plumbing but does not allow water back into the lines.  Threaded end is 1.5" MPT.

• Winterizing a pool becomes a one-person operation.
• Eliminates burping of lines.
• No need to drain water below returns.
• This double seal system provides a watertight seal.
• Includes safety cap for ice protection.
• Heavy duty rubber is resistant to anti-freeze and other chemicals.
• Can blow out main drains and multiple return lines in matter of seconds.
• Use with a winterizing skimmer door and save even more water.