Zodiac Jandy CV/DEV Large Bulkhead Fitting w/O-Ring (R0465600) pumps A spring in this role

A spring in this role is useful because it helps maintain proper movement

When the existing cartridge media becomes restricted or unreliable

Improves rope-system convenience and installation confidence

which is especially appealing for homeowners who want dependable access to core spa functions without an overly complicated interface

Zodiac Jandy CV/DEV Large Bulkhead Fitting w/O-Ring (R0465600) pumps A spring in this roleDesigned for compatible Jandy CV DEV Large Bulkhead Fitting w O Ring applications, this replacement sealing component helps restore a tight, dependable fit where water pressure and repeated service can wear down older rubber parts. O rings are small pieces, but they often determine whether a filter, valve, or plumbing connection runs cleanly or develops slow leaks after reassembly. Replacing the worn seal with the correct part number R0465600 can help