Product#: TG-1780 Availability: This item normally ships within 1 - 2 business days. Description: Standard taper inner joint at the bottom of the main tube and outer joint of the same size on the top of vertical sidearm. A take-off valve is sealed to the side tube at a slight angle to the bottom of the main tube with a 75-degree angled standard taper drip tip inner joint. Stopcock on take-off tube is supplied with either a 4 mm glass or 4 mm Teflon ® valve. On top of the main tube is a standard taper (10/30) outer joint for use with a 3" (76mm) immersion thermometer.