I was talking with a friend in the hydro business and he claimed that OMS had different hydro measurement (capacity) than Faber. It has always been my understand that OMS just painted them a different color and used the Vander Waals calculation to claim a different volume.
Comments?
OMS has never made tanks or distributed any from a different steel tank manufacturer for that matter. They are Faber's with different paint, different boots, and more "generous" size labeling in an effort to market them as "bigger".