Unicel Replacement Filter Cartridge 20 sf Hayward CX200XRE | C-4320 DE Filter Then add R‑0003 to re-pink

Then add R‑0003 to re-pink the solution and again R‑0871 until clear—this second drop count ÷ 2 gives combined chlorine

Rated for 2″ inner diameter flow and accepts 2½″ outside diameter slip connections

Genuine Hayward replacement part for reliable fit and performance

Works with J&J Electronics XG Controller

Unicel Replacement Filter Cartridge 20 sf Hayward CX200XRE | C-4320 DE Filter Then add R‑0003 to re-pinkUnicel C 4320 Replacement Filter Cartridge 20 sq ft The Unicel C 4320 is a high quality replacement cartridge designed for smaller pool and spa filtration systems. Its pleated media provides efficient debris capture, helping maintain clear and balanced water. Key Features 20 square feet of premium pleated filtration media. Durable end caps and rigid core construction for long service life. Designed to restore optimal flow and filtration in compatible