Thank you for your question, Jeanette31! The Savile model 11949-DST has used different aerators in the past and depending on when this was purchased, it may work with the adapter. If not, then you will need to check local plumbing suppliers for a M24-1 thread adapter. We apologize for any inconvenience this may have caused as we do not manufacture another type of adapter.
Best regards, Edward
Date published: 2019-04-16