The Snyder Industries 550 Gallon Plastic Vertical Liquid Storage Tank in White is a 1.5 specific-gravity vertical storage tank built for water and light-liquid service where you need real capacity without a tall, tippy profile. It stands 75 inches high on a 48 x 48 inch square footprint, so it holds 550 gallons over a compact pad while keeping the center of gravity manageable. The shell is rotationally molded polyethylene, and the 1.5 SG rating means the wall is engineered to carry contents up to 1.5 times the density of water - so a tank full of plain water sits well inside its structural envelope.
Will it work for your site?
At 550 gallons, full water weight is roughly 4,587 pounds, and the tank is rated to carry contents up to about 6,880 pounds. Those two numbers matter more than the gallon figure when you plan the install. The 4,587 lb full-water load is what a typical fresh-water fill puts on the slab; the 6,880 lb max-rated contents weight is the ceiling the structure is designed around - and it is simply 550 gallons of water multiplied by the 1.5 SG rating, which is what makes that rating tangible. Set this vertical storage tank on a level, fully supporting concrete pad or compacted base sized for the loaded weight - it wants continuous support under the entire 48 x 48 inch footprint, never a partial edge or a few blocks. If you are working through capacity and pad sizing for a fresh-water, irrigation, or rural fire-water reservoir setup, the Tank Sizing Calculator and Tank Sizing Guide walk you through matching gallons, footprint, and weight to your space.
Fittings and configuration
Fitting and bulkhead locations on this 75 x 48 x 48 inch vertical body should be confirmed for your application before you plumb the install - check the technical drawing on this page, or call us and we will confirm the molded port and bulkhead layout for this tank. No matched fittings or gaskets are assumed to ship with the tank, so verify your plumbing kit with us before ordering. For a rural or remote site, where this size of polyethylene vertical tank often anchors the private fire-protection stack, our guide on fire-water reservoir tank design for rural and remote sites covers NFPA 22 sizing discipline and freeze protection for cold-climate service.
Picking the right size in the line
If you are comparing sizes in the vertical storage tank line, the buyer's guides for the 500 gallon vertical, 300 gallon vertical, and 2000 gallon vertical tanks show how footprint and height change as you step up or down in gallons. Worth noting if you are deciding between the 500 and this 550: the 500 sits at 48 x 68 inches, so this tank buys you 50 more gallons on the same 48 x 48 footprint for about 7 inches of added height - same pad, more storage.
The mistake to avoid
The most common error on a tank this size is undersizing the base. Because the full load runs from about 4,587 pounds of water up toward the 6,880 lb max-rated ceiling, a pad that is fine for an empty tank can settle or crack once it is filled - and an out-of-level vertical tank concentrates stress on the lower wall. Build the foundation for the full, loaded weight, get it dead level, and support the entire footprint. Second, the 1.5 SG rating defines the heaviest contents this shell is built for, so this White tank suits water and compatible light liquids within that density - it is not a license to store a denser or aggressive liquid without confirming compatibility first.
This Snyder Industries vertical storage tank ships LTL freight from the Philippi, WV plant, quoted live to your ZIP. Get an exact freight rate with the Freight Cost Estimator, or call 866-418-1777 and we will quote the freight and confirm fitting details before you order.
