The sungrabber vacuum relief valve helps to facilitate the drainage of the panels in the system. This is especially important when winterizing your panels to prevent any freeze damage from occuring. The sungrabber vacuum relief valve is highly recommended by the manufacturer for all sungrabber solar panel heating systems.

Product Features

• Original FAFCO part made specifically for Sungrabber Solar Heating Panels
• Recommended for all Sungrabber Roof Mounted Solar Heating Panel Systems
• Makes winterizing your panels a snap!
• Made of sturdy PVC
• Easy to install