The Norwesco 1550 gallon vertical liquid storage tank gives you 1,550 gallons of above-ground capacity in a compact 87-inch square footprint standing 67 inches tall. It is molded from high density linear polyethylene (HDLPE) in blue and carries a 1.9 specific gravity rating - meaning the tank wall is engineered to safely hold contents up to 1.9 times the weight of water. For straight water storage that is a wide safety margin, which is exactly why this Norwesco vertical storage tank is a workhorse for irrigation supply, rainwater holding, and rural fire-water reservoir duty.
Will it work for your site?
The footprint is 87.0 x 87.0 inches with a 67-inch overall height, so the tank base measures 7.25 feet square - plan a pad of at least 8 x 8 feet to give edge clearance beyond that base. Sort out the foundation before the tank arrives: filled with water this vertical tank loads the pad at 12,927 lbs, and at its full 1.9 SG rating the contents alone can reach 24,561 lbs. That is real structural load, so pour a level, fully supporting slab. Our concrete pad sizing guide walks through the ACI 360R-10 framework for sizing that slab correctly, and the Tank Sizing Calculator and Tank Sizing Guide help you confirm 1,550 gallons matches your draw and refill cycle.
If you are planning a fire-water reservoir
This 1.9 SG vertical tank is a common choice for private fire-protection storage on rural and remote sites. Sizing a reservoir is not the same as sizing a stock tank - it is governed by required flow, duration, and freeze protection, not just gallons. Read our fire-water reservoir tank design guide for the NFPA 22 sizing discipline and cold-climate freeze-protection engineering before you commit to a single tank versus a staged set. For a closer look at this same 1,550-gallon body in its natural white versions, see the buyer's guides for the 40235 and 42595 models - same body and rating, just color.
The mistake to avoid
Confirm your fittings before you order. Outlet and fitting sizes and positions are set at the mold and are not field-changeable once you take delivery, so check the technical drawing on this page against your plumbing run instead of assuming a bulkhead location. We cannot confirm the exact outlet size or position from our catalog data alone - verify it on the drawing or call us and we will confirm the outlet and gasket configuration for your contents. And if you are storing anything other than water, do not assume this tank is approved for it: the 1.9 SG rating describes weight-carrying capacity, not chemical compatibility. Call 866-418-1777 if you are unsure which outlet configuration fits your install.
This Norwesco vertical tank ships LTL freight, quoted live to your ZIP. It molds at multiple Norwesco plants - the nearest stocking locations to most buyers include Fairfield, TX and Petersburg, TX (Norwesco runs two Texas plants), Shawnee, OK, Griffin, GA, Sheldon, IA, St. Bonifacius, MN, Lancaster, OH, Hanford, CA, Tooele, UT, Owego, NY, and Washougal, WA - and we ship from the plant closest to you to keep transit short. Get a real number to your delivery ZIP with the Freight Cost Estimator, or call 866-418-1777 for a freight quote and help confirming the right 1,550 gallon tank for your project.
