The Snyder Industries 275 Gallon HDPE Vertical Liquid Storage Tank is a white polyethylene vertical storage tank rated to ASTM standards and built to a 1.9 specific-gravity spec, listed at 59 inches tall on a 47 x 47-inch footprint. That 1.9 SG rating is the heart of this tank: it means the shell is engineered to hold contents far denser than plain water without thinning out the way a lighter-rated water tank would. For most operators sizing a 275-gallon vertical storage tank, three questions decide the buy: will it do the job, what does freight cost, and what mistake bites you later. Here are the answers, straight from this tank's data.
Will it work for your install
This is a 275-gallon vertical HDPE tank measuring 59 inches high on a 47 x 47-inch footprint, so plan your pad and overhead clearance around that envelope before it ships. Filled with water, the tank and contents weigh roughly 2,294 lbs. Because the shell carries a 1.9 specific-gravity rating, it is built to a maximum rated contents weight of about 4,358 lbs — that is 2,294 lbs of water multiplied by 1.9, and it is the load your concrete pad and supports must be designed against if you are storing a heavier liquid. Run your own numbers through the Tank Sizing Calculator and the Tank Sizing Guide to confirm the size and weight loading match your site.
Fittings and access
The technical drawing on this page details the full fitting layout. This Snyder vertical tank carries a flange, an 18-inch PE threaded and vented fitting, and a manway with a 15-inch access opening. That 15-inch manway is large enough for hand-cleaning and inspection, but verify it clears any internal hardware or mixer you plan to run before you commit. The 18-inch threaded/vented fitting and the flange each take their own gasket and thread or bulkhead hardware, so match gasket material and thread spec to your service liquid before you plumb. For why the vapor-saturated headspace deserves attention on an HDPE shell, the guide on HDPE tank wall thickness and ASTM D1998 sizing logic walks through the inspection logic operators should understand.
The mistake to avoid
Do not assume a lighter tank will carry the same load. A standard 1.0 or 1.5 SG water tank in this size would not be rated for that 4,358-lb maximum — the 1.9 rating is precisely what lets this shell hold dense or chemical-grade liquids, and it is the spec you are paying the premium for. Build the pad to the rated load, not the water weight: the concrete pad sizing guide for above-ground polyethylene tanks walks through the ACI 360R/318 framework for getting that foundation right.
This tank ships LTL freight from Snyder's plant in Marked Tree, Arkansas, quoted live to your ZIP rather than rolled into the list price. Get an exact number with the Freight Cost Estimator or call 866-418-1777 and we will quote it for you. Size it right, build the pad to the rated load, and this Snyder 275-gallon vertical HDPE storage tank will run for years.
