Round bottom, four-neck flask with outer [ST] joints and a thermometer joint.

• Heavy wall borosilicate construction
• Ground glass joint
• Straight side necks
• Threaded side arm
• Cap included

Supplied complete with a compression cap and a Viton® O-ring. For insertion of plain thermometers or bleed tubes with an outside diameter between 5 to 7 mm. Hand-blown from tubing to ensure heavy, uniform wall. Side [ST] joints size: 24/40.