2 Filter Tank Clamp O-Rings. Compatible with Pentair part 39010200 and 39010200z. Also compatible with part O-497. Compatible with Pentair Clean and Clear Plus Filter Tank models CCP-240, CCP-320, CCP-420, CCP-520. Compatible with Pentair FNS Plus Filter Tank models FNSP-24, FNSP-36, FNSP-48, FNSP-60. Compatible with Pentair Quad DE models Quad DE 60 Quad DE 80 Quad DE 100. Replacing the Tank Body O-Ring can return your swimming pool or spa filter system back to peak performance. Made from heavy duty premium materials for durability and performance. The brand names and logos are the registered trademarks of their respective owners. Any use of the brand name or model designation for this product is made solely for purposes of demonstrating compatibility. Packaging may vary.