• This seal is for saltwater pools, but works with chlorine pools as well.
• Kit contains 1 mechanical seal, 5 o-rings, 1 each: O-301, O-302, O-318, O-419, O-421

Also works with chlorine pools, just a tougher mechanical seal.  Compatible with Aladdin Go-KIT5.  Compatible with PureLine Pentair PacFab Challenger Pump-CHII Series