Pentair Stainless Steel Back-Up Ring | FNS Plus, Quad D.E., Clean & Clear Plus & FullFloXF Filters | 195339 C8410 Interchangeable flow tabs for marking

Interchangeable flow tabs for marking ports (english & spanish included)

Extremely durable blow molded plastic

OEM Brand Product Name Part Number Notes Sundance Spas — 6540-488 Models dated before 2006 contain a core block/plug — transfer to new cartridge

excellent fit for Kreepy Krauly Aqua color suction side cleaners

Swimmers can re-enter the water immediately after treatment

Pentair Stainless Steel Back-Up Ring | FNS Plus, Quad D.E., Clean & Clear Plus & FullFloXF Filters | 195339 C8410 Interchangeable flow tabs for markingThe Pentair Stainless Steel Back Up Ring (195339) is the OEM replacement seal component for Pentair FNS Plus, Quad D. E., Clean & Clear Plus, and FullFloXF series pool and spa filters. IMPORTANT: MANUFACTURING DATE REQUIREMENT This back up ring is designed for filters manufactured after February 2003 (FNS Plus and Quad D. E. models) and after March 2003 (Clean & Clear Plus models). Check your filter's manufacturing date label before ordering.