The Snyder Industries 850 Gallon HDPE Vertical Liquid Storage Tank is built on a 1.9 specific-gravity resin package, and that 1.9 SG rating is the spec that defines this model. It means the tank wall is engineered for liquids substantially heavier than water: this tank carries a maximum rated contents weight of 13,469 lb versus 7,089 lb when filled with plain water. The tank stands 114 in tall on a 48 x 48 in footprint, holds 850 gallons, and is molded in white polyethylene. If you are cross-shopping vertical HDPE storage tanks, this is the size and weight class people search when they need a Snyder vertical storage tank rated for high-gravity service rather than a standard water-only drum.
Will it work for your application
Start with the specific-gravity math. Plain water sits at 1.0 SG, and at 850 gallons that produces the 7,089 lb full-water figure. The 1.9 SG rating gives you headroom to 13,469 lb of contents, which is the full 850 gallons filled to nominal at 1.9 SG, and that headroom is what separates this tank from a standard 1.0 to 1.5 SG water tank. Before you commit, weigh your actual stored liquid: take its specific gravity, confirm it sits at or under 1.9, and confirm your pad can carry the load. At maximum contents the 13,469 lb spread across the 48 x 48 in footprint (2,304 in²) works out to roughly 5.8 psi of distributed bearing pressure, which is the number your slab or pad rating needs to clear. A buyer storing a 1.5 SG liquid has weight headroom but should still run that pad check. Our Tank Sizing Calculator and Tank Sizing Guide walk through that weight-and-volume check step by step, and the technical drawing on this page shows the overall dimensions for your final clearance and plumbing plan.
The mistake to avoid on a high-SG tank
The number one error on a tank like this is treating the weight rating as a chemical-service rating. A 1.9 SG rating tells you the wall is engineered for the weight of a heavy liquid, but weight rating and chemical resistance are two separate questions. Before placing any liquid in service, confirm chemical compatibility directly with the manufacturer for your specific liquid and concentration. Fitting and gasket selection is part of that decision: confirm the outlet, fill, and vent configuration against the technical drawing on this page and with the manufacturer before you order. Our guide on XLPE vs HDPE for high-SG storage covers how resin chemistry interacts with concentration, and the HDPE wall-thickness and ASTM D1998 sizing piece covers where vapor-side failures actually start.
Water-side and large-volume uses
Classed for water service, this 850 gallon vertical is also a working size for bulk water storage and private fire-water reservoirs, where a tall white HDPE tank holds a usable reserve on a compact footprint. Our fire-water reservoir design guide covers NFPA 22 sizing discipline and freeze protection for cold-climate sites, and the 850 gallon vertical liquid storage tank buyer's guide walks through how this size class fits across applications.
Freight and ordering
This tank ships LTL freight from the Snyder plant in Philippi, WV, quoted live to your ZIP code. At 114 in tall it stands above the standard 96 in trailer-door height, so the dimension drives the LTL freight class and may call for specific delivery equipment; pricing depends on distance and delivery details rather than a flat rate. Run your ZIP through our Freight Cost Estimator for a live number, or call 866-418-1777 and we will quote the tank and freight together and help confirm the right spec for your application before you order.
