The Snyder Industries 4400 Gallon HDPE Vertical Liquid Storage Tank is a Lincoln, Nebraska-built polyethylene storage tank engineered for high-density bulk liquid service. Standing 182 inches (15'2") tall on a true 90 x 90 inch square footprint, this white vertical tank carries an ASTM-certified build and a 1.9 specific gravity rating, which means it is rated to hold liquids substantially heavier than water without exceeding its structural design envelope. Filled with water it weighs 36,696 pounds, and at its maximum rated contents weight it carries 69,722 pounds, so the pad and site work under this tank matter as much as the tank itself.
Will this vertical storage tank work for your application?
This is a 4,400 gallon HDPE vertical tank with a 1.9 SG wall rating, putting it among the heaviest-duty Snyder verticals in the lineup. The molded-in fittings shown on the technical drawing include a flange, an 18-inch PE threaded and vented lid, a manway with 15-inch access, two-to-three-inch S.U.M.O. fittings, a 12 x 14 inch fitting, and a flat fitting boss. The 15-inch manway access supports interior entry, inspection, and cleaning, while the S.U.M.O. fittings and the 12 x 14 inch fitting are your inlet, outlet, and bulkhead candidates. Review the technical drawing on this page to match each fitting location and size to your inlet, outlet, vent, and overflow plumbing before you order, since fitting placement on a tank this size is not field-adjustable. Note that fitting seals and gaskets are not specified in our listing data here, so confirm the gasket spec for each penetration on your order rather than assuming what ships.
Sizing, weight, and SG planning
At 4,400 gallons of water the loaded weight is 36,696 pounds; the 1.9 SG rating raises the maximum rated contents weight to 69,722 pounds for denser liquids. That 1.9 rating is the structural ceiling: if you are running standard water at 1.0 SG you are over-specced and have headroom to spare, while buyers handling denser fluids should match the SG rating to their actual fluid density. Our Tank Sizing Calculator and Tank Sizing Guide help you confirm the gallons you actually need and the usable volume after freeboard, and the concrete pad sizing guide walks through the ACI 360R-10 framework for a tank carrying tens of thousands of pounds. If your build calls for double-wall containment or you are weighing freeboard against thermal expansion, the Snyder Captor freeboard sizing breakdown and the HDPE wall thickness and ASTM D1998 sizing guide explain where the wall is engineered and why it matters.
The mistake to avoid
The single biggest error on a tank this size is under-building the foundation. At nearly 37,000 pounds full of water, this storage tank needs a properly engineered, level concrete pad rated for the loaded weight, not a gravel bed or an undersized slab. The 1.9 SG rating tells you the tank can structurally hold liquids heavier than water, but it does not tell you whether your slab can. Size the pad to the loaded weight, confirm it is dead level before filling, and verify the 18-inch threaded vent stays clear so the tank can breathe as it fills and drains. For rural or remote fire-water reservoir duty, the NFPA 22 fire-water sizing guide covers freeze protection and reserve sizing for cold-climate sites.
This Snyder vertical storage tank ships LTL freight from the Lincoln, Nebraska plant, quoted live to your ZIP. At 182 inches (15'2") tall, confirm overhead clearance at the install site and along the offload path - doorways, eaves, and power lines - before your delivery window. Get a freight number for your ZIP with our Freight Cost Estimator, or call 866-418-1777 to plan delivery, offloading, and pad requirements. Because a 4,400 gallon vertical tank requires equipment to receive, line up a forklift or crane rated for the empty tank weight before your delivery window.
