Is there an adapter to fill these with a 1lb tank?

Yes, you still use the adapter for 20 lb tanks and add a 20lb to 1lb adapter. This is readily available at your hardware store and it's purpose is to allow you to hook up a 1lb propane bottle to your BBQ for when the 20lb runs out in the middle of a cookout. Sometimes called a "Steak Saver" HTH

Is tank suppose to leak gas after the bleeder valve is closed after filling?

No it should not leak after filling. But the smell of propane is strong give it a minute after filling to air out.

Why is it called a 1/4lb tank? It weighs half a pound empty and only holds about 1.5oz of propane.

It hold 50 grams of propane. I have filled two of these containers multiple times and 50 g is how much propane can be held. I have a YouTube viewer that independently verified the weight. The claimed 3.85 ounces is approximately 100 g which is double the actual capacity. Maybe the flame king company and explain. For fun I filled up one of these tanks with butane, and I weighed the fuel as 65 g.

Im loving how the cylinder looks, but is it a snap head or a screw on head?

it is a screw on head, the same as standard 1lb propane bottles to screw onto propane torches and anything that takes those

1 4lb Propane Cylinder | Desertcart Mexico

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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MX$1734

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mexico.

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Description

🔥 Refill, reuse, and reignite your outdoor lifestyle! 🔥

COMPACT POWERHOUSE - Perfectly sized at just 2"x5.13" for easy handling during precision tasks like welding, searing, or camping.
BACKYARD CONVENIENCE - Refill your tank safely and quickly at home with the Flame King refill adapter (sold separately) — no more last-minute store runs.
SAFETY YOU CAN TRUST - Equipped with a UL1769 listed patented valve and tested aluminum alloy steel construction for worry-free refills.
ECO FRIENDLY FUEL FREEDOM - Ditch disposables and join the refill revolution with a reusable 1/4-lb propane tank that saves money and the planet.
VERSATILE OUTDOOR ESSENTIAL - Ideal for cooking torches, portable lamps, lanterns, and camping gear — your go-to companion for every adventure.

The Flame King 1/4-lb Empty Refillable Propane Cylinder Tank offers a compact, durable, and eco-conscious solution for portable propane needs. Featuring a UL1769 listed patented valve and high-grade alloy steel construction, this 3.85 oz tank is designed for safe, fast refilling at home or on the go. Perfect for camping, cooking, and welding applications, it combines convenience with sustainability to keep you fueled and ready.

Specifications

ASIN	B0BGW116NC
Additional Features	Patented Valve, Refillable, Fast & Safe Refilling
Age Range Description	Adult
Best Sellers Rank	#94,545 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #54 in Camping Replacement Fuel
Bottle Type	Refillable, Pre-Purged, Vacuum Ready
Brand	Flame King
Brand Name	Flame King
Capacity	3.85 ounces
Color	Green
Container Type	Tank
Customer Reviews	4.4 out of 5 stars 304 Reviews
Finish Types	Powder Coated
Included Components	3.85 Oz Empty Fuel Tank
Item Dimensions W x H	2"W x 5.13"H
Item Type Name	1/4-lb Empty Refillable Propane Cylinder Tank - Reusable & Transportable - Safe and Legal Refill Option - UL1769 Listed Valve
Item Weight	0.25 Kilograms
Manufacturer	Flame King
Manufacturer Part Number	FK3.85LP
Material	Alloy Steel
Material Type	Alloy Steel
Model Name	FK3.85LP - 1/4-LB Refillable Propane Cylinder
Model Number	FK3.85LP
Number of Items	1
Number of Packs	1
Product Care Instructions	Hand Wash Only
Recommended Uses For Product	cooking torches, small propane lamps and lanterns, welding torches
Reusability	Reusable
Shape	Rectangular
Special Feature	Patented Valve, Refillable, Fast & Safe Refilling
Specific Uses For Product	small propane lamps and lanterns, welding torches, cooking torches, camping
Sport Type	camping
Style Name	1/4LB Tank (1-PK)
Theme	Camping
UPC	850034692111
Unit Count	1.0 Count

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MX$1734

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mexico.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.