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Hello,

Thanks for your post! The 39-221B Encore Dyad Sill Mount Operator is similar to what you have but I cannot make any guarantees it will work for the repair. The base of  your operator is shaped somewhat differently, so we cannot be any guarantees it will work in place of what you have. Take a look over the specifications and compare them to see what you think.

The opposite version of this operator can be found tagged below, along with the compatible hardware and accessories.

detail of 39-221B