The Snyder Industries 20,000 Gallon Vertical Liquid Storage Tank (SKU SII-3030000C137) is a large-scale bulk water and liquid storage vessel molded in white High Density Linear Polyethylene. It stands 242" tall (over 20 feet) on a 165" diameter footprint, weighs 5,000 lb empty, and ships without a fitting so you specify your own bulkhead and plumbing package at install. This is Snyder's heavy-wall vertical platform, rated to a 1.9 specific gravity and a maximum contents temperature of 120 F / 48 C, and carrying Snyder spec references 2285 / 2282. If you're comparing 20000 gallon tank options in white from Snyder Industries, this is the vertical liquid platform at the top of that range.
Will it work for your site
Sized for high-volume municipal, agricultural, fire-reserve, and industrial water applications, this tank holds 20,000 gallons on a 165.0" diameter footprint. Filled with water, contents weigh 166,800 lb, so foundation design is not optional: you need a level, engineered concrete pad rated to carry the full footprint plus the 5,000 lb empty shell. The single design load your foundation engineer should stamp against is the tank's full-rating ceiling — maximum contents weight of 316,920 lb at the 1.9 specific gravity — paired with the hard 120 F / 48 C temperature limit. Those are the two numbers that govern the install. To confirm volume and pad geometry against your demand, use the Tank Sizing Calculator and the Tank Sizing Guide.
The mistake to avoid
The 1.9 specific-gravity rating is the wall's structural ceiling, not an invitation to fill it with anything. This is a linear (HDLPE) water and liquid-storage tank; it is not sold here for chemical service, and storing a dense or aggressive liquid without confirming compatibility is how large verticals fail. Match your stored liquid's specific gravity to the 1.9 rating, respect the 120 F ceiling, and never exceed either. On a vessel this size, a fill error is not a spill — it is a foundation and structural event. Just as important: the only factory opening is the 24" top manway. There is no pre-molded bottom outlet. Plan and field-install every penetration yourself — outlet, overflow, and vent — using the 24" lid for top access, level sensing, and inspection.
Freight and next steps
At 5,000 lb and over 20 feet tall, this is an oversized flatbed freight item, not a parcel shipment. Offload requires equipment rated for a 5,000 lb, 20-ft shell — a crane with a spreader-bar/two-point pick, not a forklift — so arrange overhead clearance and rigging before the truck arrives. See the technical drawing on this page for the shell profile and manway location. The tank ships LTL from Snyder's plant in Washington Court House, OH, and freight is quoted live to your ZIP. Get your number with the Freight Cost Estimator, or call 866-418-1777 to coordinate delivery, offload, and fitting specification. If you're spec'ing a rural fire-water reservoir, our fire-water reservoir design guide walks through NFPA 22 sizing discipline and cold-climate freeze protection for polyethylene tanks this size.
Freight and documents
Ships from: Washington Court House, OH. LTL freight is quoted to your ZIP with the freight cost estimator or by phone at 866-418-1777. The listed price is before freight.
Technical drawing (PDF) for Snyder Industries 3030000C137.
Ready to order?
Add it to your cart at the top of this page, get LTL freight to your ZIP, request a written quote, or call 866-418-1777. The listed price is before freight.
