This adapter Z31 has three outlets and one inlet. You can connect gas device with EN417 Lindal Valve (stove, lantern etc…) to its upper outlet, and meanwhile connect extent hoses to its two side outlets. Of course, due to built-in check-valve (self-sealing valve), you can use only one or two of its outlets as you need. The inlet of this adapter Z31 is for gas fuel canister with EN417 Lindal valve. By using attached circle holder, you can use canister integrated. Package include: 1 * Adapter Z31 Feature: Convert the isobutane gas tank(alpine gas tank) interface into 2~3 heads, enabling one gas tank to supply multiple stoves or gas lamps.; there are rubber rings at the connection of the gas tank to prevent gas leakage;