Zodiac R0465600 Bulkhead Assembly with O-Ring Replacement for Select Zodiac Jandy D.E. and Cartridge Pool and Spa Filters Bulkhead assembly replacement Fits Zodiac Jandy DEV series D.E. pool and spa filter models DEV48, DEV60 Also fits Zodiac Jandy CV Series cartridge pool and spa filter models CV340, CV460, CV580 Includes o-ring