AirSept's Dual Automatic Recycle Guard (DARG) protects A/C service equipment from sealant, debris and other contaminants without technician intervention when the shop machine goes from recover to recharge. The guard connects to both the high and low sides of the vehicle A/C system with just one Recycle Guard unit. Recycle Guard connects between the recovery machine and the vehicle, and traps debris and contaminants before they can enter and harm A/C service equipment.