W Cooper Hub w Standpipe [RS 3020 No Laterals] (3021A) leviton The W70328 is a practical The W70328 is a practical repair part when a compatible Zodiac Baracuda G3 cleaner needs its foot flange restored for better fit and more dependable operation This version is especially useful when the original setup uses the Baja Spas slide kit style and cannot be cleanly replaced with a broader universal option making it useful when the standpipe or hub requires replacement but the matching lateral set is handled separately The hub and standpipe help direct water through the filter system and are key internal components in proper filtration performance