*PLUMBERSSTOCK EXPERT* responded:
Good day! In regard to your question on this Moen 130156 thermostatic cartridge, here's an illustrated parts sheet that may help you to better understand the difference between the 1st generation and the 2nd generation valves. Also, here's the installation manual for the S33715 shower valve. We hope this may help. As our valued customer, you can take advantage of our exciting deals and special discounts. Please sign up for our newsletter by entering your email address in the field provided below and get the latest updates on PlumbersStock's exclusive promotions. Happy shopping!