The Snyder Industries 850 Gallon HDPE Vertical Liquid Storage Tank (SII-1810000C26) is an 850-gallon white vertical storage tank molded in high density linear polyethylene, standing 117 inches tall on a 48 x 48 inch footprint. Because it is a linear polyethylene tank carrying a 1.9 specific gravity rating, the wall is engineered with headroom for liquids heavier than water, which makes it a flexible choice for water and liquid-storage jobs where you want margin in the rating rather than a tank specified right at the edge.
Will this tank work for your job?
Filled with water, the contents weigh about 7,089 pounds, and the tank is rated to carry contents up to 13,469 pounds at its 1.9 specific gravity rating. That means plain water runs the tank at roughly 53 percent of its rated capacity, so the same body comfortably handles liquids up to about 1.9 times the density of water without being run at its structural limit. To match your fluid, confirm its density against that 1.9 rating rather than assuming any vertical tank handles any liquid. The 48 x 48 inch footprint with a 117-inch height makes this a tall, compact vertical that fits a relatively small pad while still holding 850 gallons. One install note worth checking early: 117 inches is 9 feet 9 inches, so confirm vertical clearance and access at the delivery point, the install spot, and the fill plumbing before you order. If you are matching tank capacity to demand or pad space, run the numbers through our Tank Sizing Calculator and check the layout against our Tank Sizing Guide first. For private fire-protection storage, our fire-water reservoir design guide covers NFPA 22 sizing discipline for a tank this size.
Fittings and outlets
This listing does not enumerate the fitting, outlet, and gasket configuration for this SKU, so do not assume a particular outlet size or porting from the photos. Call 866-418-1777 to confirm the exact fitting and outlet layout before you order, and see the technical drawing on this page for dimensional reference.
How it ships
This is a large vertical tank, so it moves by LTL freight rather than parcel. Snyder Industries molds this line at Lincoln, NE; Marked Tree, AR; and Philippi, WV, and your tank ships from whichever of those plants is nearest your delivery ZIP to keep freight down. The BigCommerce price is the tank list price before freight, and LTL is quoted live to your destination.
The mistake to avoid
The most common error on a vertical storage tank this size is reading the specific gravity rating backward. This tank carries a 1.9 rating, which covers water and most heavier liquids comfortably, but you should confirm that rating against the actual density of what you intend to store rather than assuming the tank fits any liquid. The second is pad and headspace: a tank with a max rated contents weight of 13,469 pounds needs a properly sized, level, fully supporting base, and because polyethylene tanks of this type often begin failing at the vapor-saturated headspace rather than the liquid side, wall integrity up top matters as much as the foundation below. Our guide on concrete pad sizing for above-ground polyethylene tanks walks through the ACI 360R-10 framework, the HDPE wall-thickness at the vapor-saturated headspace guide explains where these tanks actually fail, and the 850 gallon vertical liquid storage tank buyer's guide covers the rest of the sizing decisions for this footprint.
Ready to order? Get an instant LTL freight quote to your ZIP with our Freight Cost Estimator, or call 866-418-1777 to talk through lead time and freight on this 850 gallon Snyder vertical HDPE storage tank.
