Ventubes are hollow stainless steel cylinders installed in chimneys that provide cross ventilation for large flues. When properly installed, they prevent moisture damage that results from condensation in the large cavities surrounding the flue liners. They do this by allowing up to 85% of the condensation inside of the cavity to escape.

• Provides Cross Ventilation for Large Flues
• Prevents Moisture Damage
• Helps Prevent Efflorescence and Spalling
• Easy to Install
• Wire Screen Guard to Prevent Insects
• Angled Tip Keeps Water Out
• 100% Stainless Steel