Polaris Zodiac 180/280/360/380/3900/Quattro P40 Swivel (D20) rolachem A part like this is

A part like this is useful because it restores the visible top of the suction fitting while preserving a more distinctive color-matched appearance around the pool fitting area

Designed for compatible internal valve sealing

That makes accurate configuration matching especially important during service

The back plate is part of the pump assembly and helps support proper sealing

Polaris Zodiac 180/280/360/380/3900/Quattro P40 Swivel (D20) rolachem A part like this isThis swivel is used with Polaris 180 through 3900 cleaner hose systems and compatible Quattro P40 applications. It allows hose sections to rotate during operation, helping prevent binding and improving the cleaners ability to move freely. When a swivel becomes worn, seized, or leaky, the hose can twist and pull the cleaner off its intended path. Replacing the swivel helps restore smoother operation and can improve overall cleaning consistency.