Never run out of propane again. The Propane Gas Level Gauge shows when you're running low, so you never run out. With an easy-to-read glow in the dark dial, your propane meter will display your propane levels, even in the dark. Gas Gauge Meter is easy to connect, no tools required. Fits appliances with type 1 connection. UL-listed. Propane Tank Level Indicator with low and refill calibrations Large thread grip is easy to screw onto appliances Fits appliances with type 1 connection Built-in leak detector restricts flow in case of hose or grill malfunction Includes travel cap per DOT regulations Meets ANSI Z21.18/CSA 6.25 standards UL-approved Order today!