*PLUMBERSSTOCK EXPERT* responded:
Hi! We are glad to know about your interest in our NuTone 3808 Semi-Rigid 8' PVC Tubing. According to NuTone, this NuTone 3808 is a special thin-walled tubing with a two-inch outside diameter piping specially used for central vacuum systems. For more information, please check page 26 of this Catalog. If you want to order the product, feel free to click "Add to Cart" and put your postal code and you're ready to go. 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. Thank you for visiting PlumbersStock.com!