The Chem-Tainer 750 Gallon HDPE Vertical Liquid Storage Tank is a Natural White polyethylene vertical built for bulk liquid holding where you need real capacity in a tight footprint. It stands 119 inches tall on a 46 x 46 inch base, so 750 gallons of working volume occupies barely four feet of floor space - useful when ground area is the constraint and headroom is not. The natural white wall is translucent enough to eyeball the liquid level without opening a lid, and the 1.9 specific gravity rating tells you exactly how heavy a contents this shell is engineered to carry. This is the heavy-duty IA-rated version of the 750 gallon vertical storage tank, not the standard build.
Will it work for your storage job?
This is a vertical HDPE storage tank rated for liquid storage, and the weight math is the part most buyers skip. Filled with plain water, the tank carries roughly 6,255 pounds of contents. Because the wall is rated to a 1.9 specific gravity, the same shell holds a denser liquid up to about 11,884 pounds of rated contents - that headroom is what lets it serve fluids heavier than water without overstressing the wall. Use both numbers when you spec your pad: a 46 x 46 inch footprint concentrating 6,000-plus pounds needs a flat, fully supporting base, ideally a continuous concrete pad or sand bed under the entire bottom, not blocking or partial support. If you are matching this 750 to your draw-down or refill cycle, run the figures through our Tank Sizing Calculator or read the Tank Sizing Guide before you commit. For rural fire-suppression or on-site water-reserve duty, our fire-water reservoir design guide covers NFPA 22 sizing for tanks in this range.
Why the 1.9 rating, and the mistake to avoid
The 1.9 specific gravity rating is the reason to choose this tank over a lighter build. A standard 1.0 to 1.5 SG 750 gallon tank is fine for plain water and many light fluids, but it cannot safely carry the dense liquids this shell is engineered to hold. If your service is heavier than water, the 1.9 rating is what you are buying. The matching error to avoid is treating that structural rating as permission to store anything: it means the wall can bear the load of a liquid up to 1.9 times the weight of water, nothing more - it is not a chemical-compatibility statement. Always confirm your specific fluid against the manufacturer's chemical-resistance data before filling, and check the gasket and seal elastomer (EPDM versus Viton/FKM) against that fluid, not just the outlet thread - the gasket is the usual chemical failure point, separate from the HDPE wall and the structural SG rating. For exact fitting locations, outlet size, bulkhead positions, and the tank dry weight, see the technical drawing on this page, which reflects the as-built configuration for this model; confirm the dry weight there before you arrange offload for an 8-foot-plus tall tank. The other quiet failure point on tall verticals is the upper wall at the vapor-saturated headspace; our guide on HDPE tank wall thickness at the headspace explains why liquid-side inspections miss problems there.
How it ships
This 750 gallon vertical storage tank ships LTL freight from the Chem-Tainer plant in Merced, California, with freight quoted live to your ZIP - we do not bury shipping in the list price. Get an exact number through our Freight Cost Estimator, or call 866-418-1777 and we will quote the LTL rate to your delivery point and confirm the right offload for an 8-foot-plus tall tank. Want a deeper read on this size before you buy? Our 750 gallon vertical storage tank buyer's guide walks through the platform (note it pictures a shorter 46 x 107 sibling; this IA model stands 119 inches), and the Snyder vs Norwesco vs Chem-Tainer comparison shows how this Chem-Tainer HDPE vertical tank stacks up against the field.
