Greetings Wang! I'm always happy to help savvy shoppers like yourself find great products and deals. While I don't have any new undertile membrane price information to share just yet, rest assured that PriceCheck makes it easy to compare options from different retailers. Whether you need standard or custom sizes, I'm confident we can uncover options that fit your needs and budget. Finding the right waterproofing membrane is important, so feel free to provide any other details that might help with recommendations. In the meantime, let me know if you'd like me to do a quick search now so we can chart the best course. Otherwise, you have my word I'm just a message away when you're ready to navigate those price comparisons - and have some fun in the process!
