*PLUMBERSSTOCK EXPERT* responded:
Hi! We appreciate that you're asking about our Brizo RP54314PC Polished Chrome 1900 Conversion Trim Kit. Unfortunately, the Brizo RP54314PC will not work with your Delta 1900 shower faucet as confirmed by Brizo. The Delta RP54316 1900 Conversion Trim Kit is the product that you need. Just click on the link and you will be directed to the Delta RP54316 page. If you're ready to purchase a product, just hit the "Add to Cart" button, enter your zip code to get a shipping cost estimate and proceed to checkout to begin the ordering process. If you have other questions, you can contact one of our customer support specialists @ 435-868-4020 between 8:00 AM and 7:00 PM MST. If E-mail is your preferred method of contact, you can email them at firstname.lastname@example.org and they will be happy to assist you. Thank you for visiting PlumbersStock.com. Hope you have a stress-free day!