Thank you for your question. To verify if the T2794 shower trim will work with your existing valve body, first make sure the existing roman tub unit is a Delta unit. If the existing unit is a roman tub unit, we recommend to look at your original tub spout assembly. The tub spout will have a set screw either in the front or back of the spout. If the set screw is in the front, no new roman tub trim will work with the existing valve body. If the set screw is in the back, any new trim kit, including the T2794 roman tub, will fit on the existing valve body. All of our new trim kits have the set screws on the back of the spout so they will retrofit on the original valve body. I hope this information helps.
Date published: 2018-11-08