1. Clear Propane Level Indicator: The Lpg tank knife uses different colour codes to clearly indicate the propane level in the tank, keeping you informed of the remaining gas and when to change or refill. This indicator provides an estimated measurement rather than an accurate measurement when the propane tank is exhausted 2. Easy to Install: The handwheel design allows installation in less than two minutes without additional tools. For performance, tighten the Propane tank knife horizontally to better monitor pressure levels 3. Sturdy ConstructionThe propane gauge is made of solid brass, which is wear and corrosion resistant brass to ensure lasting durability. In addition, it is CSA certified to eliminate concerns about leaks 4. Safety Design: This indicator of the propane tank gauge has a builtin leak detection. When a leak is detected, the gas flow is automatically restricted to ensure your