Waterway Weir Snap Lock [w/Socket Kit] [Black] (550-0401B) pumps A part like this is

A part like this is useful because it pairs a larger trim format with a more active user-facing jet pattern

not just a generic substitute

A valve adapter helps connect filter components while preserving the intended plumbing relationship through the valve area

Tank bodies form the main pressure vessel of compatible cartridge filter systems and help contain internal filtration components

3-piece design supports cleaner service and replacement

Waterway Weir Snap Lock [w/Socket Kit] [Black] (550-0401B) pumps A part like this isThe Waterway 550 0401B weir snap lock is designed for compatible applications and comes as a black kit with socket components included. A part like this is useful because it helps restore the mounting and retention point for the skimmer weir, supporting a cleaner and more secure installation of the moving door assembly. Retention hardware matters because even a good weir cannot function properly if the locking or support components are damaged. This