Cavagna 66-C-290-0010 Gasgard LP Gauge Cavagna Gasgard Universal Propane Gas Monitor Gauge The Type 1, QCC1 Fuel Indicator can be used on grills manufactured after 1995 (Ducane or Weber after 1999) The AD-2G is a quick on ACME connection at both ends for ease of installation Features a leak detector and refill indicator, and a positive seal mechanism that prevents gas flow until appliance is fully connected