The Snyder Industries 4000 Gallon ASTM XLPE Black Heavy Duty Vertical Storage Tank is a crosslinked polyethylene vertical tank built for demanding bulk-water and heavy-liquid storage. Molded in black XLPE with a 1.9 specific gravity rating, it stands 104 inches tall over a 120 x 120 inch footprint and carries a full 4,000-gallon working volume. If you have been searching for a black XLPE vertical storage tank that handles more than plain water, the crosslinked wall and high SG rating are why this Snyder tank belongs on the short list.
Will it work for your site?
Start with the load numbers, because they drive your pad and your rigging. Filled with water this tank weighs about 33,360 lb, and its 1.9 specific gravity rating means it is engineered to hold contents up to roughly 63,384 lb at full capacity. That headroom is the whole point of crosslinked polyethylene: the wall is rated for denser liquids than a standard HDPE tank of the same size, and 1.9 is the top of the crosslinked SG class, so there is no heavier-duty variant to step up to above it. The 120 x 120 inch dimension is the pad and footprint envelope you need to prepare, not a narrow-diameter tank — this is a wide-body vertical only 104 inches tall, so plan your concrete pad and roof clearance around that squat profile. Run your volume against the Tank Sizing Calculator and the Tank Sizing Guide before you commit to a diameter.
Fittings and access
Per the technical drawing on this page, this tank is configured with a flange outlet, an 18-inch PE threaded and vented top fitting, and a manway with 15-inch access. That 15-inch access opening is your practical limit for interior cleaning, camera inspection, and gasket or bulkhead service, so confirm it fits the equipment your crew uses. Match the flange-outlet gasket and any bulkhead fitting to your service liquid's chemistry and to the 1.9 SG contents weight, and verify fitting elevations and outlet size against your plumbing before you set the tank. See the technical drawing on this page for the exact fitting layout and dimensions.
XLPE vs. HDPE — the choice to get right
The common mistake on a tank this size is treating XLPE and HDPE as interchangeable. They are not. Crosslinked polyethylene is what earns the 1.9 SG rating and the heavier contents it allows; a standard HDPE tank at the same gallonage will not carry the same load. If you are weighing the two, read Snyder XLPE vs HDPE: When Crosslinking Matters for Chemistry Duty, and if this tank feeds a fire-water reservoir, the rural fire-water reservoir design guide covers NFPA 22 sizing discipline. For the pad itself, the concrete pad sizing framework keeps a 63,000-lb loaded tank from settling unevenly.
This vertical storage tank ships LTL freight from the Snyder plant in Chowchilla, California, and freight is quoted live to your ZIP. Because it ships from a single California origin, buyers east of the Rockies should price the haul early — get a number in seconds with the Freight Cost Estimator or call 866-418-1777. A tank this size crates as a dedicated LTL shipment, so confirm you have forklift or crane access and a prepared pad at the delivery point before it rolls out.
