Tier1 Replacement for Hayward C1200 Star-Clear Plus, Filbur FC-1293, Pleatco PA120, Unicel C-8412 Pool Filter Cartridge AFFORDABLE REPLACEMENT: Replacement Hayward C-1200 filter for Pool and Spa Systems that need a 8 15/16 inch (Outside Diameter) by 23 1/4 Inch (Length) INCREDIBLY SIMPLE TO USE: Easily replace your old PA120, Filbur FC-1293, Unicel 8412, or Hayward C1200 filter with the Tier1 C1200 hayward replacment EXTREMELY DURABLE: Durable and Washable Pleated fabric that maintains strength even when loaded with sediment, our high flow core is designed to support the filter while providing industry leading flow rates FITS THE MODEL NUMBERS: This Tier1 C-1200 spa filter can be used in place of your Hayward C1200 and Pleatco PA120 filter 100% TIER1 NO WORRIES GUARANTEE: We stand behind the quality of filtration and overall performance of our Tier1 filters! Replace your filter when the pressure gauge on your filter tank reaches 8 psi above the pressure recorded when first installed. Turn off the power to your pump and bleed the excess air pressure of the system using the air valve on the filter. Remove any band clamps and/or lids to your filter. Remove the cartridge from the filter canister and dislodge any loose debris Rinse the cartridge thoroughly with clean fresh water and return it to the filter tank. Secure the tank lid and any band clamps.