WOW ! What did you pay ? I have installed and used DELTA for 20 years.
I Did not know Delta made anything plastic. Just had a problem with a Set Screw on the Orleans Model Handle-went to their website for Lifetime Warranty CLAIM. They responded within 2 days-email to use vinegar to loosen the screw. Called their 800# today-they are mailing me a replacement Handle and set screw at no charge for parts that would cost over $60.00 ! DELTA is fantastic & honors their Lifetime warranty.