All Propane Tanks

420 lbs (120 Gallon) Propane D.O.T. Tank

120 gal

$1,353.75

Tank only. Flat-rate freight $540 per tank in the contiguous US, added at checkout.

In stock — ready to dispatch

120 gallon above-ground DOT-stamped propane tank, stamp-verified and inspected in our yard. Nationwide insured freight, with any access surcharge quoted before you pay.

Certification sent with the invoice Data plate photograph and pressure-test paperwork for this exact unit.
Insured freight, carrier calls ahead Flat $540 per tank in the lower 48. Remote and limited-access sites quoted up front.
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Description

The first size that behaves like a real installation rather than a bottle: a fixed vessel, a gauge, and a supplier who delivers to it.

Often fitted to serve a generator or a single heater in an outbuilding away from the main supply.

Filled to the 80% limit this vessel holds about 96 gallons of propane — roughly 9 million BTU, or about 407 lb of product. On a 30,000 BTU/hr appliance that is around 293 hours of burn time from a full fill.

The next size down is 100 gallons and the next up is 200. Stepping up costs less than most people assume once freight is counted only once.

Technical details

  • Water capacity: 120 gallons
  • Fillable volume: approximately 96 gallons
  • Product weight when full: approximately 407 lb
  • Energy held when full: approximately 9 million BTU
  • Nominal cylinder rating: 420 lb
  • Installation: Above ground
  • Certification: DOT stamped
  • Condition: Confirmed on your invoice
  • Fuel: Propane / LPG

Siting notes

Above-ground siting is the straightforward option: no excavation, no anode bag, and every valve and the gauge are reachable without opening a dome. It sits on legs or saddles on a level pad and can be inspected in place for the whole of its service life.

We supply and deliver; we do not install. A propane vessel must be set and commissioned by a licensed propane professional under NFPA 58 and your local code.

Condition and certification

Condition is confirmed on the invoice. Whichever we ship, it is stamp-verified, pressure tested, and documented for the specific unit you receive.

Service valve, fill valve, relief valve, float gauge and vapour connection are all checked before dispatch, and anything that does not pass is replaced rather than nursed along.

Buying notes

Buy the documentation, not just the steel. A vessel without a legible stamp and a test record is worth a fraction of one with both, whatever the listing says.

Size against the real load, not the optimistic one. A vessel one size too small costs more across ten years of refills than the larger one did on the day you bought it.

Talk to the sales desk

Tell us the load and the ZIP. We will quote the tank and the freight together.

No call centre and no quote-chasing — you get a real figure, in writing, from someone who knows what a lift gate costs in your county.

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