Hayward Replacement Filter Cartridge (CX1900RE) americanpool 2-3/8 inch face diameter

2-3/8 inch face diameter

In spa and pool plumbing

A union nut like this is useful because it helps hold the removable plumbing or equipment connection together while still allowing future access for maintenance

Useful when original collars are cracked or worn

Hayward Replacement Filter Cartridge (CX1900RE) americanpool 2-3/8 inch face diameterThe Hayward replacement filter cartridge is designed for compatible cartridge filter applications where the internal filter element needs replacement. A filter cartridge is useful because it captures suspended dirt and debris from circulating water, helping maintain cleaner water and dependable filtration performance. This replacement is especially useful when the original cartridge is torn, clogged beyond cleaning, collapsed, or no longer filtering