Hot Tub Filter Cartridge Compatible With Watkins Spa 30 SF HTCP 8560 / 31489 .GREAT BARRIER PLEATS - High temperatures and the wet environment make an unprotected filter surface a target for the growth of bacteria. Great Barrier Pleats are made with genuine Reemay Advantage with Microban. Microban 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. OD: 6\ Top ID: 1 15/16 Bottom ID: 1 15/16 Length: 10 1/2” Sq. Ft: 30"

• This is for a Single 30 SF Filter
• Great barrier 30sf watkins 31489
• 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
• Continuous antimicrobial cleaning action of Microban makes the spa filter easier to clean, keeps it fresher between cleanings and ensures filter life
• High Quality that's made to last!!