This replacement filter cartridge is engineered for seamless compatibility with Cal Spas hot tub systems, specifically designed to work with HTCP8525 filter models. Featuring high-efficiency filtration media, it effectively removes debris, sediment, and contaminants to maintain crystal-clear water and optimal circulation. Easy to install and maintain, this cartridge extends the life of your hot tub's plumbing while reducing strain on your pump system. Replace annually or as needed based on water clarity and usage frequency for peak performance and water quality.

Hot Tub Replacement Part Great Barrier Cal Spa/Rising Dragon for Rising Dragon Pool and Spa Filters. HTCP8525

• This item is a 1-Piece Great Barrier Cal Spa/Rising Dragon filter
• Great Barrier Pleats are made with genuine Reemay Advantage with Microban.
• Microban antimicrobial protection inhibits the growth of bacteria that can cause staining odors and degradation of the filter. 
• The unique continuous antimicrobial cleaning action of Microban makes the spa filter easier to clean, keeps it fresher between cleanings and ensures filter life.
• Rising Dragon 4CH-949, 4CH949, FC-0172, FC0172, PWW50L
• Replaces Unicel 4CH-949 Filter Cartridge
• Cross-reference: Filbur / Unicel # FC-0172 / 4CH-949
• OD:4 15/16"
  Top ID: Handle
  Bottom ID: 2" Fem SAE
  Length: 12 1/2”
  Sq. Ft: 50