No tools required and with hand heel grip for tightening Provides secure, airtight connection between propane gas containers Ideal for using barbecue, heater, smoker, camping stove, lamp, table grill, pit table, turkey fryers and other propane gas appliances Monitors fuel level without removing tanks. Color coded dials so you can see at a glance when your propane content is low This propane gas meter can be used with propane gas cylinders, propane gas regulator with hose and propane gas adapter, Manufacturer: DIEKE