why is illegal to refill 1lb container? They sell adapters for that. But this looks much easier

I was refilling the disposable tanks for awhile, but I kept noticing that many would develop "trickle leaks" (hold it up to your ear and hear the faintest little hiss). About half the canisters would bleed very slowly. Also, when you refill, there's a relief button near the valve on the 1lb tank, that needs to be depressed while filling until liquid propane comes out. About half of those don't re-seat themselves fully closed after a refill. In the end, refilling the disposable canisters is probably more trouble than their worth. So is the Flame King kits. I can refill these canisters multiple times, but... After the 5th or 10th refill of their cylinders about HALF of THOSE also continue to leak when you disconnect from their specialized filling valve. Worse yet, many of them will gush liquid propane onto your hands while you're disconnecting, and will even penetrate wool or cloth gloves giving you a very nasty freeze burn. In the end, I think I'll just buy lots of 5gal tanks, with hoses and adapters for any device that uses a 1lb tank. Hope this info helps.

Anyone know where you can find the two pack or single ones, I can't find it anywhere but Amazon?

Check Flame King’s website. It has where to buy info.

Can I use any refill adaptor or does it need to be the one offered by flame king? I already have an adapter that works on the "non refillbale" tanks.

I have an off-brand refill adapter and it works just fine.

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1LB EMPTY Propane Cylinder Tank – Refillable – Reusable – Safe and Legal Refill Option – DOT Compliant – 16.4 oz for Camping, Backpacking, and Hiking (2-Pack), Green (YSN164-2)

Product ID: 640017717

Details

Brand
Flame King
Color
Green
Item Weight
1.5 pounds
Material
Alloy Steel
Product Dimensions
3.75"W x

⛽1 lb refillable capacity

♻️Eco-friendly reusable design

🛡️DOT certified & safe

£54.85

Duties & taxes included

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Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

♻️ Fuel your adventures sustainably with the last propane tank you'll ever need!

BUILT TO LAST 🔧 - High-grade alloy steel, X-ray & hydrostatic tested, powder-coated for durability.
REFILL SAVE 💸 - Stop wasting money on disposables—refill easily at home with your BBQ tank.
UNIVERSAL COMPATIBILITY 🔄 - Fits all appliances that use standard 1 lb propane tanks—Weber, Coleman, Mr. Heater & more.
ECO WARRIORS CHOICE ♻️ - Reduce landfill waste with reusable tanks designed for camping, hiking, and backpacking.
CERTIFIED SAFETY FIRST 🛡️ - Only 1 lb propane tank legally DOT certified for safe refilling and transport.

The Flame King 1LB refillable propane cylinder (2-pack) offers a legally certified, safe, and eco-friendly alternative to disposable tanks. Made from durable alloy steel with advanced safety testing, these tanks are designed for easy backyard refilling from standard BBQ cylinders (adapter sold separately). Perfectly compatible with popular outdoor appliances, they help you save money, reduce waste, and stay adventure-ready.

Specifications

ASIN	B08NY2TW9P
Best Sellers Rank	#3,050 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1 in Camping Stove Empty Fuel Bottles
Brand Name	Flame King
Capacity	1 pounds
Color	Green
Customer Reviews	4.4 4.4 out of 5 stars (3,044)
Fuel Type	Liquefied Petroleum Gas
Included Components	2 - 1LB Propane Cylinders
Item Dimensions W x H	3.75"W x 8.25"H
Item Type Name	Flame King Refillable 1 lb Empty Propane Cylinder Tank 16.4 oz 2-Pack
Item Weight	1.5 pounds
Manufacturer	Flame King
Material	Alloy Steel
Model Number	YSN164-2
Number of Items	2
Number of Packs	2
Part Number	YSN164-2
UPC	850015730443 016027465661
Warranty Description	30 Day Manufacturer Warranty. Warranty voids if purchased from any other seller that is not Amazon Retail and/or Flame King.

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