Polaris Zodiac 180/280/360/380/3900 Swivel [Black] (D21) mazzei This replacement is especially useful

This replacement is especially useful where using the correct spigot-by-spigot format avoids unnecessary coupling changes and helps keep the installation cleaner

Confirm using part number 640-8240V

A properly selected O-ring helps support cleaner closure and contributes to more dependable tank sealing performance during normal operation

Supports cleaner service isolation and maintenance access

Polaris Zodiac 180/280/360/380/3900 Swivel [Black] (D21) mazzei This replacement is especially usefulThis black swivel helps reduce hose twisting on compatible Polaris 180 through 3900 cleaner systems. Swivels are important connection points that allow the hose to rotate more freely as the cleaner moves around the pool. A worn or restricted swivel can contribute to hose tangling, poor cleaner movement, and reduced coverage. Replacing it helps maintain smoother hose behavior and supports consistent cleaner travel during each cleaning cycle. Black