The Snyder Industries 12000 Gallon Plastic Vertical Liquid Storage Tank is a White, high-density polyethylene vertical that stands 197 inches tall on a 142 x 142-inch footprint. It is a single-wall bulk storage vertical built for water and high-density liquids, carrying a 1.5 specific gravity rating that covers contents up to 50% heavier than water without exceeding the tank's design margin. The spec sheet lists the resin as high-density linear polyethylene; because a 1.5 SG rating at 12,000 gallons sits at the top of the band, confirm the exact resin designation against the technical drawing on this page before ordering for anything denser than water.
Will this tank work for your application?
At full water, this tank holds roughly 100,080 pounds of contents, and its 1.5 SG wall rating allows a maximum rated contents weight near 150,120 pounds. Those numbers drive the pad: a tank this size demands a properly engineered, level concrete foundation, and the 142 x 142-inch footprint sets your minimum slab dimensions before clearances. The technical drawing on this page calls out the fitting package - an 8" x 7" flat fitting, a bolted 3-inch 316 stainless fitting with an EPDM gasket, stainless steel lid screws, and a 26-inch manway with a vent. Confirm inlet and outlet locations against your plumbing run before ordering, because fitting placement on a tank this large is not field-adjustable. To match capacity to your draw rate and refill cycle, the Tank Sizing Calculator and Tank Sizing Guide walk through the math.
Fittings, gasket, and the vented manway
The 3-inch bolted 316 stainless fitting ships with an EPDM gasket. EPDM handles water and many dilute chemistries well, but it is attacked by petroleum, oils, and several solvents - if your liquid is not EPDM-compatible, plan to swap that gasket for a compatible elastomer before service. The 26-inch vented manway gives top access for inspection and cleaning, and its vent must stay clear in operation: rapid fill or draw against a 100,080-pound water column can pull a vacuum or build pressure, and a blocked vent on a tank this size is a structural failure mode, not a nuisance. Buyers searching for a white vertical storage tank at this volume are usually consolidating several smaller tanks into one footprint, which cuts fitting count, plumbing, and pad area. If a large-volume reservoir is part of a rural fire-protection plan, our guide on fire-water reservoir tank design covers NFPA 22 sizing discipline and cold-climate freeze protection. Sizing down instead of up, the 2000 gallon, 500 gallon, and 300 gallon buyer's guides round out the vertical line.
The mistake to avoid
The most common error at this size is treating the 1.5 SG rating as a license to skip foundation engineering. The rating governs what the tank wall can hold, not what your slab can carry. A fully loaded 12,000-gallon tank puts roughly 150,000 pounds onto its footprint, and any settling, slope, or soft spot under that load shortens service life and undermines the structural assumptions behind the design. Pour and cure a flat, reinforced pad sized to the full 142 x 142-inch base, and verify it is dead level before the tank arrives.
This tank ships LTL freight from the Snyder Industries plant in Merced, California - the single ship point for this SKU, so buyers east of the Rockies should plan on long-haul oversize transport. Given the 197-inch height and full-footprint base, freight is quoted live to your ZIP code rather than listed as a flat rate; the list price above does not include it. Get an exact number with our Freight Cost Estimator, or call 866-418-1777 and we will walk you through delivery, offload requirements, and lead time for a tank this size.
