Why is it shown connected to a mapp gas cylinder?

Just for illustration purposes - they are the same threading as 1lb. propane cylinders. MAPP is no longer made, being replaced by MAP-Pro. Both were/are more costly than propane and burn hotter than propane.

What is the size of the male connector. I need 3/8”

The side that screws into the camping stove is 3/8" and the side that screws directly onto the disposable 1 lb. propane cylinder is a standard female 1"-20 fitting for such cylinders (not for hoses to the larger 20 lb. propane tanks).

Do I need some kind of regulator for this? I bought one and am using it but it causes the gas volume to vary wildly independent of turning the knob..

No. Sounds like a problem with the burner

Do you need to change an orfice to use the propane on a butane stove?

No, I use propane on my butane stove.

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Propane to Butane Adapter Camping Stove Adapter 16 oz Propane Tank Gas Adapte...

Product ID: 210906180

Details

Brand
Hamans
Fuel Type
Propane
Material
Aluminum
Number of Items
1
Number of Packs
1
Power Source
Gas Powered

🔗EN417 valve output

🔥1 lb propane input

⚙️Self-locking safety

¥2330

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⛺️ Fuel your adventure with flawless connection and zero compromise!

LEAK PROOF SELF LOCK - Innovative self-lock design ensures a secure fit with zero gas leaks—safety first on every adventure.
DURABLE PREMIUM BUILD - Crafted from corrosion-resistant aluminum alloy and copper for long-lasting, rust-free performance.
ULTRA LIGHT COMPACT - Weighing just 35g and pocket-sized, it’s the perfect travel companion for backpackers and outdoor pros.
SEAMLESS FUEL CONVERSION - Effortlessly switch 1 lb propane tanks to EN417-compatible devices for ultimate camping convenience.
VERSATILE OUTDOOR ESSENTIAL - Compatible with camping stoves, lights, and more—your must-have adapter for every outdoor escapade.

The Hamans Propane to Butane Adapter converts 1 lb propane tanks to EN417 valve output, featuring a self-locking mechanism to prevent leaks. Made from durable aluminum alloy and copper, it weighs only 35g and measures 1.38 x 1.18 inches, making it an essential, compact, and reliable accessory for camping stoves and outdoor gear.

Specifications

ASIN	B0891LP1J5
Best Sellers Rank	#191,710 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #477 in Camping Stoves
Brand Name	Hamans
Customer Reviews	4.6 4.6 out of 5 stars (803)
Fuel Type	Propane
Included Components	Propane to Butane Adapter
Item Dimensions L x W x H	1.18"L x 1.18"W x 1.38"H
Manufacturer	Hamans
Material	Aluminum
Model Number	GL-191201
Number of Items	1
Number of Packs	1
Part Number	GL-191201
Power Source	Gas Powered
UPC	730718026060

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