The Norwesco 265 Gallon HD Vertical Storage Tank (SKU 45875) stands 91 inches tall on a compact 31 x 31-inch footprint, molded in Natural White polyethylene and rated to a 1.9 specific gravity. That high SG rating is the headline number on this vertical tank: the HD designation means it is built for heavier-than-water contents, not just plain water. For straight water storage it gives you a wide safety margin; for denser liquids it is what lets the tank hold them at all.
Will it work for your site?
At 265 gallons, a full load of water weighs roughly 2,210 pounds, and the tank is rated to carry up to 4,199 pounds of contents at its full 1.9 specific gravity. That 4,199-pound figure is the contents ceiling - confirm your liquid's specific gravity against 1.9 before filling, since denser-than-1.9 service is outside this tank's rating. Plan your pad and anchoring around that loaded number. The narrow 31 x 31-inch footprint paired with the 91-inch height makes this a good fit where floor space is tight but vertical clearance is available - pump houses, equipment sheds, and indoor corners. Because it stands tall and narrow, a level, full-contact base is critical; an undersized or uneven pad concentrates load and is the most common installation mistake on a tall vertical like this one. See the technical drawing on this page for exact dimensions and any factory-installed fittings, and use the Tank Sizing Calculator and Tank Sizing Guide to confirm 265 gallons matches your draw-down and refill cycle before you buy. The 1.9 rating is the top of this tank's range and is the upgrade tier itself, so there is no heavier variant to step up to.
Common-use water storage
This Norwesco vertical storage tank handles general bulk water duty - irrigation supply, rural and remote water reserves, rainwater catchment, and process feed. For rural fire-protection reserves, read our guide on fire-water reservoir tank design and NFPA 22 sizing, and if you are aggregating grey-water, rainwater, or HVAC condensate, our industrial water reuse tank topology guide covers quality-banded storage trains.
Set it on the right base
A tall vertical tank needs a flat, continuous-support foundation. Our walkthrough on concrete pad sizing for above-ground polyethylene tanks works through the ACI 360R-10 framework so the pad carries the full 4,199-pound rated load without point stress. If you are pairing the tank with rainwater capture, the first-flush diverter sizing guide helps keep your stored water clean from the start. The outlet and bulkhead fitting sizes are not listed in this spec set - confirm the fitting and gasket configuration for your plumbing by calling 866-418-1777 before ordering.
Freight
This tank ships LTL freight from Fairfield, Texas, and freight is quoted live to your ZIP code. Empty, it is a straightforward one-piece LTL item; loaded, that 4,199-pound rated weight is your pad and forklift decision, so size delivery access - liftgate or forklift - to the empty tank and the foundation to the loaded number. Get an exact freight figure with the Freight Cost Estimator or call 866-418-1777 and we will quote it for you. Have your delivery ZIP and any access details ready so we can confirm the right LTL service for your location.
