Sinus Rinse is an excellent product!! The packets come in two forms: a square foil and a tubular. Is there any way on the box to tell which is which? Posted on January 1, 2019March 8, 2023 by 0 Vote Up Vote Down Ask A Doctor Staff asked 4 years ago Sinus Rinse is an excellent product!! The packets come in two forms: a square foil and a tubular. Is there any way on the box to tell which is which? My wife and I vastly prefer the tubular version especially when traveling. Thank you. 1 Answers 0 Vote Up Vote Down Ask A Doctor Staff answered 4 years ago Six months from today, they all will be tubular. At present we have mix batches. Please login or Register to submit your answer Username or Email Address Password Remember Me