Astral Pool Persius Drain Plug Assembly (4404010108) pumpmotorparts An O-ring like this is

An O-ring like this is useful because it helps keep the inline union leak-resistant while preserving the serviceable nature of the connection for future maintenance

Helps restore the visible skimmer front trim

2 inch six-position design

and speed configuration helps protect fit and maintain expected operation

Astral Pool Persius Drain Plug Assembly (4404010108) pumpmotorparts An O-ring like this isThe Astral Pool Persius drain plug assembly is designed for compatible filter applications where the lower service opening needs a complete replacement closure. A drain plug assembly is useful because it helps seal the drain point during use while preserving access for draining, cleaning, and maintenance when required. This replacement is especially useful when the original assembly is leaking, cracked, incomplete, or no longer fastening properly.