• Unicel - C-5404, Dimension one#1561-09, Sonoma Spa(50402) replacement filter


    • Diameter: 5 1/2-inch; length: 17-inch
    • Top end cap: open with 12 concentric holes, 1 15/16-inch inner diameter; bottom end cap: open, 2 7/8-inch inner diameter
    • Pleat count: 133; filter media: 4-ounce reemay 2040; filter area: 40 square feet
    • Get more efficient filtration and better water clarity with Unicel filters
    • Longer time between cleanings; meets oem specifications
    • Replacement for: Dimension One Spas 1561-09 (Note: Ozone cartridge.); Sonoma Spas