GasOne Propane Gauge - Propane Tank Gauge Pressure Meter Allows to Connect QCC Regulator NO MORE GUESSING GAMES - The days of having to guess how much propane is left in your tank are over. Gas Ones Propane Gauge allows for users to see how much fuel they have left in an instant UNIVERSAL FITTING CONNECTION - Gas Ones Propane Gauge has a universal fitting (QCC-1) made for standardized 5-20lb propane gas tanks. An easy to install connection for the purpose of reading an accurate propane level SOLID BRASS CONNECTION - Built with a solid brass construction to ensure a sturdy and durable connection, with sufficient heat resistance EASY HASSLE-FREE CONECTION - Ready to use right out the box, just simply attach Gas Ones Propane Gauge on to your standard propane tank and its ready for use EASY TO READ, COLORED INDICATOR - Gas Ones Propane Gauge has a meter that reacts to the pressure of the propane tank. There are three-built-in indicator levels labeled Refill, Low Gas, Gas to ensure an easy and accurate reading