R0462700 is a black, rubber o-ring with a cross sectional diameter of 1/2". it is used as the seal between the top and bottom half of a Jandy CS series filter.

JDY-R0462700 - O'RING tank top cs filter REPLACEMENT KIT JANDY

$19.99 
SKU: R0462700

Zodiac R0462700 Tank Top O-Ring Replacement for Zodiac Jandy CS Series Cartridge Pool and Spa Filters