portable outdoor gas tank refill adapter, exhaust valve and portable air pressure valve adapter

Camping Tank Filling Adapter - This adapter allows you to transfer liquefied gas from one valve cylinder to another. You can also empty the tank for recycling and disposal; the pump adapter is made of high quality materials and corrosion resistant for long-term use Easy to assemble - the conversion tank mounts directly and the adapter screws directly into the gas tank or stove gas line for a tight, gap-free fit Connect the air tank - The flat silver can reduces the internal pressure in the lower oil tank (air tank). Portable and Convenient - This gas hose connector is small in size, powerful in function, easy to carry and reliable to use, and suitable for camping, picnics and other outdoor activities.