Question 1038168
If a case of 12-250ml tubes is $19.50, that amounts to 3 liters for $19.50. 15 liters equals 5 cases@19.50 each, equalling  $97.50 total. 5 liters for $20 equals three bottles, equalling $60. $97.50-60=$37.50 total savings per month!!!!!!!!!