Features Detection Function This propane tank adapter has leak detection function. If a leak is detected, the instrument will limit the flow to defend you. Perfect Fit Our propane tank adapter can perfectly fit most instruments, you don't have to worry about any non-adaptation, just use it with confidence. Applicable Scenarios This propane tank adapter is compatible with all devices for QCC1/1 type connections for 20lb to 40lb propane tanks. Three levels: monitor the fuel level without removing the tank. Colour coded dial to inform you at a glance when the propane level is low. Here are three levels, natural gas, low gas and refill. Compact Size The compact size of this propane tank adapter means it is easy to carry and can be easily stored when not needed without taking up too much space. Specification: Item Type: Propane Tank Adapter Material: Copper Package list: 1 x Propane Tank Adapter Small note: Manual measurement, the specific size will prevail in kind. Package List 1 x Gas Tank Adapter