The Snyder Industries 4100 Gallon vertical storage tank is a black, crosslinked linear polyethylene (XLPE) vessel built for heavy-duty bulk water and dense-liquid storage. It measures 100 inches tall on a 120-inch diameter — the same 120 x 120 inch footprint you will lay out on your slab — and carries an ASTM XLPE construction rated to 1.9 specific gravity, giving you real headroom for liquids heavier than water. If you are searching for a large black vertical storage tank from Snyder, this is a workhorse-scale unit that answers the three questions that matter: whether it fits your job, how it ships, and what to get right before you buy.
Does this tank work for your site?
At 4100 gallons, a full load of water weighs roughly 34,194 pounds, and the tank's 1.9 SG rating means the shell is engineered to hold contents up to about 64,969 pounds at 1.9 SG maximum rated density. That XLPE (crosslinked) wall is the reason it carries the higher SG rating rather than the lower ceiling typical of standard HDPE tanks — if you are weighing the two, the Snyder XLPE vs HDPE guide walks through when crosslinking earns its place. The 120-inch diameter is the number to check against doorways, containment walls, and access routes, not just slab area; use the Tank Sizing Calculator and Tank Sizing Guide to confirm capacity and pad dimensions against your draw and refill cycle.
Fittings and setup
Per the technical drawing on this page, the tank ships with an 18" PE threaded manway for access and a flange fitting. Outlet and bulkhead fittings land on the flat fitting pads (8 places, 45° typical), which you self-locate for your plumbing layout — so before you order gaskets, decide the gasket material (EPDM, Viton, or similar) that matches your fluid, and reference the drawing directly for exact fitting placement and elevations before you plumb the tank in. A tank this size and weight belongs on a properly engineered foundation — the concrete pad sizing framework covers the ACI approach for above-ground polyethylene tanks so the base can carry that 34,000-plus pounds of full water weight without differential settlement.
The mistake to avoid
The most common error on a tank this size is treating the SG rating as headroom you never need to think about. At 1.9 SG this shell is over-specified for plain water, which is good insurance, but if you ever change service to a denser liquid, verify the new fluid's specific gravity stays within that 1.9 ceiling before you fill. For fire-protection and reservoir duty, size the usable volume deliberately rather than assuming nameplate gallons — the fire-water reservoir design guide and the freeboard sizing article explain how much real volume you can actually count on.
This tank ships LTL freight from the Snyder plant in Marked Tree, Arkansas, quoted live to your ZIP. Get an exact number with our Freight Cost Estimator, or call 866-418-1777 to talk through delivery access, off-load, and lead time before you order.
