I have my own construction company. Contractors price each gallon . I paid from a level 1 distributor AceJan for 16 gallons or 4 cases of 4 gallons $510.00 back in August 2020 now even if they work with 100% margins the 16 gallons probably cost them $255 /16 = 15.90 per gallon That’s it great profit for PCTL I know ACEJAN leases to hospitals the machines for around $12 k a month I would think that the margins for pctl are also 100% there as well