The Snyder Industries 300 Gallon HDPE Vertical Liquid Storage Tank stands 94 inches tall on a 33 x 33 inch footprint, holding 300 gallons in a single white vertical column. Built from high density linear polyethylene by Snyder Industries and carrying ASTM certification, this vertical storage tank is sized for sites where height is available but floor space is tight — a true 33-inch-square base that fits against walls and through standard openings.
What it holds and how it performs
Full of water at 8.34 lb per gallon, the tank carries 2,502 pounds of contents, so plan a level, load-rated pad and a foundation that holds that weight without settling. The wall is rated to a 1.9 specific gravity, with a maximum rated contents weight of 4,754 pounds. That rating is the real story: this tank is not limited to water. It can hold liquids up to 1.9 times the weight of water — fertilizer solutions, brines, and many heavier liquids — without exceeding the wall rating, while plain water at 1.0 specific gravity gives you substantial headroom for long service life. The fitting package shown on the technical drawing on this page includes a 10-inch PE threaded fill, a cap with a 7-inch access opening, a 7 x 10 fitting flat, a flange, and an additional fitting flat — enough to plumb a fill line, a vent or access point, and an outlet. Confirm each fitting against the drawing before ordering plumbing, and match gasket and seal durometer to your liquid, since threaded and flanged outlets seal correctly only with the right gasket material for the service.
Sizing the tank and the install
Before you commit, run the numbers. The Tank Sizing Calculator and Tank Sizing Guide confirm that 300 gallons of vertical HDPE storage matches your draw rate and refill cycle. Mind the overhead: at 94 inches tall with a 10-inch threaded fill on top, plan for the full tank height plus working room to thread and remove the fill cap — a real gotcha in basements, sheds, and low-eave structures. For fire-water or rural reservoir duty, the fire-water reservoir design guide walks through NFPA 22 sizing and freeze protection, and the ASTM D1998 wall-thickness guide explains how HDPE wall thickness is engineered and where premature failures originate.
The mistake to avoid
The most common error on a 94-inch-tall, 33-inch-wide vertical tank is underbuilding the base. A narrow footprint carrying 2,502 pounds of water concentrates significant load, and a tall, slender column is sensitive to an out-of-level pad — settling under one edge puts uneven stress on the wall over time. Set it on a full, flat, level pad that supports the entire 33 x 33 base, not just the perimeter, and verify the surface is plumb so the column stands true. Because the tank is tall and top-heavy when empty and lifted, confirm liftgate or forklift handling with the carrier at delivery.
This tank ships LTL freight from the Snyder plant in Marked Tree, Arkansas, quoted live to your ZIP code. That central-US origin generally means competitive transit to the South and Midwest, but the only way to know your number is to run it: get an exact quote in seconds with our Freight Cost Estimator, or call 866-418-1777 and we will quote it and answer any sizing question. For a deeper look at this size class, see our 300 gallon vertical liquid storage tank buyer's guide — note that guide covers a different 300-gallon profile (35 x 79), so compare its dimensions against the 33 x 94 specs above before drawing conclusions.
