3 Tanks, only 1 is still mounted on original single axle trailer (same as your picture) , I paid more then 1K for complete, portable one, so the ones already offered sound like most reasonably available and closer, I purchased all 3 from MCLB near Barstow and they still reside in California. Quality insulated double wall tanks, using 1 as domestic supply at our Mojave Desert property. Good luck in your search, they are well constructed tanks.
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