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Flame King YSN401a 40 Pound Steel Propane Tank Cylinder with Overflow Protection Device Valve,White

  • Based on 638 reviews
Condition: New
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$120.61 Why this price?
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Apr 21
Order within 1 hour and 55 minutes
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Style: 40 LB Tank


Features

  • EMPTY TANK: Pre-purged vacuum ready for filling with propane; built from high-grade, welded steel and powder coated for rust prevention
  • OVERFILL PREVENTION DEVICE: Comes with an OPD valve to prevent overfilling; required by law in most States, if your tank doesn't have this, most places won't fill it!
  • SAFETY: X-ray and hydrostatic tested and DOT and Transport Canada certified so you can be sure to transport safely both in the US and CA
  • SUIT YOUR NEEDS: With a standard-size connection valve, this large 40LB tank will connect as easily as smaller tanks, and work with RVs or trailers, propane tank attachable heaters, and other accessories.
  • LEADING THE INDUSTRY: Flame King, a leader in propane storage solutions, prides itself on making the highest quality, premium, refillable propane tanks on the market. From 1lb up to 100lb tanks, we've got you covered

Brand: Flame King


Color: White


Material: Alloy Steel


Product Dimensions: 12.3"W x 29.3"H


Item Weight: 14.11 Kilograms


Brand Name: Flame King


Fuel Type: Liquefied Petroleum Gas


UPC: 899003000465


Manufacturer: Flame King


Global Trade Identification Number: 65


Item Type Name: 40 Pound Steel Propane Tank Cylinder With OPD Valve


Unit Count: 1.0 Count


Item Dimensions W x H: 12.3"W x 29.3"H


Item Weight: 14.11 Kilograms


Capacity: 40 Pounds


Color: White


Material: Alloy Steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Apr 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Works grear!
Style: 40 LB Tank
This is a great product
Reviewed in the United States on September 27, 2025 by Gary C

  • 40 lb. Tank
Style: 40 LB Tank
Never had a problem with it.
Reviewed in the United States on April 1, 2026 by carl

  • Perfect
Style: 40 LB Tank
This was a great purchase .
Reviewed in the United States on February 22, 2025 by JOYCE MARTIN

  • Better tanked than gassed?
Style: 40 LB Tank
Recently I purchased a propane powered generator for emergency use. Because propane has a lower energy content than gasoline I knew that the generator would be fuel hungry, but I did not fully appreciate how much that would be the case. I soon began looking for a better option than a couple of 20lb BBQ tanks. These have turned out to be a good answer. They are about as big and (when filled) heavy as I want to fool with, and depending on load, are good for around a day each. Currently I have 3 tanks, and I plan on adding 3 more. Construction seems to be pretty good, but since I am storing them outside, I have supplemented the powder coat finish with an anti-corrosive spray in vulnerable areas. I think you would find them a good purchase. ... show more
Reviewed in the United States on November 13, 2020 by rwizard

  • As advertized
Style: 40 LB Tank
Good item. Looks like a quality build and finish
Reviewed in the United States on March 4, 2025 by John Hamlyn

  • Tank madness
Style: 40 LB Tank
Well made
Reviewed in the United States on October 9, 2025 by Thomas S Snelling

  • 40lb cylinder
Style: 40 LB Tank
Good deal
Reviewed in the United States on October 5, 2025 by Amazon Customer

  • Seemed to be priced within 10% or so of a used one. Go figure??
Style: 40 LB Tank
I did the Facebook/Marketplace and Craigslist ads for a used one. So after a few weeks of looking for a reasonable deal, I gave up. Amazon's price on this (and I bought a smaller one as well) was within 10 or 15% more than some beat-up used hand-me-down. Your experience may vary. :) Anyway, works well, looks good and is 100% as well built as any other tank I've ever owned. ... show more
Reviewed in the United States on October 23, 2024 by Mike-K

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