Hayward T-Cell Union O-Ring [12-Pack] (GLX-UNION-ORING) sandfilters When the treatment side of

When the treatment side of the system needs dependable ultraviolet support

A focused timer replacement like this is especially useful when the rest of the electrical system remains serviceable and the weak point is isolated to the timing device itself

Improves operating stability and service confidence

That makes it a practical service tool

Hayward T-Cell Union O-Ring [12-Pack] (GLX-UNION-ORING) sandfilters When the treatment side ofThe Hayward union O ring pack is designed for compatible T Cell applications where multiple union seals are needed for service or stock. O rings like these are useful because they help maintain cleaner seals at the cell unions, supporting more reliable operation and easier maintenance of the salt chlorination system. This 12 pack replacement is especially useful for service inventory, multi system maintenance, or replacing several worn seals at once.