On thing to note is that USMC supply is occasionally different than US Army. From those photos, I'm sure those depict the USMC sand-coloroed plastic 20L cans. Those cans have a single handle on top, but between 'squarish" supports, and not angular like the IDF cans. The USMC can has a huge (like 100mm) main cap with a smaller 10-12mm "pouring" cap set in the larger cap.
I have one of those cans in my collection of stuff. A legacy of spending 26 years within the reach of gulf coast hurricanes, I actually have an OD USMC marked water can, a Blue one (before that was standardized as diesel), and the tan one.
I've seen the cans stacked like the photos show, I'm just glad I never had to heave 20 kilos of water and can and lash it together like that.
Still a beautful model. Almost can smell the grease and the burnt diesel.