A: Hello! The PVC gauge on the H2OGO! Artic Rush Snow Tube is 16. If you have any issues or have any questions; Please contact our Customer Service Center at: 480-530-0500 if you are in the US or 418-579-8200 if you are in Canada should you have any questions. Our business hours are M-F from 8:30 am - 5:30 pm Arizona Time. You can also request a call back from one of our representatives or submit a warranty claim on our website. Please note that our phone menu has changed, and you will need to listen to the end of the message to speak to a representative.