The Coupling Nut compresses a rubber washer (included) to form a water tight seal. Bestway Lay-Z-Spa B / C Water Pipe Grey Coupling Screw Nut Connector and Nipple. Bahamas, Bali, Barbados, Cancun, Havana, Hawaii, Helsinki, Honolulu, Ibiza, Maldives, Miami, Monaco, New York, Palm Springs, Paris, Saint Tropez, Siena, Tahiti, St Moritz, St Lucia, Vancouver, Vegas and many more.
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