40+ year old kitchen sink with pull out hose mount sprayer. Sprayer is
failing. Are these a universal fit type of item? Can spray heads be
obtained or must the entire unit including the hose be replaced as well?
Any true advantage doing one or the other?

Anticipating a kitchen upgrade in the near future so with that in mind
not wishing to invest in replacement faucet assemblies if that can be
avoided.


Thanks.