Hi, DaninKaty.
Thank you for taking the time for writing review for your Delta Monitor T17251-WE shower trim kit. We appreciate your feedback. Feedback like yours helps us to become a better company and help us to make updates and modifications to our faucets in the future. Some parts of this unit are non-metallic. Non-metallic parts are also beneficial in that they do not rust or corrode. Please know that all of our products are tested to ensure long-lasting use and have a Lifetime Limited Warranty. Please feel free to call, email, or message us on social if you have any questions or need assistance.
Best regards, Rosanna
Phone: 1-800-345-3358 | Email: customerservice@deltafaucet.com | Facebook/Twitter: @deltafaucet