A genuine Halstead expansion vessel kit. The expansion vessel usually consists of two internal compartments, separated by a rubber sheet, which is called a diaphragm. A chamber designed to protect water heating systems from excess pressure, the expansion vessel is filled with air which acts as a cushion against system pressure surges.
Please always refer to the manufacturer's instructions for the correct application. All parts should be fitted by a qualified gas-safe certificate plumber.
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This product fits the following appliances:
• Quattro Gold
• Quattro Gold CVI
• Trio 30/90
• Wickes 2000 CVI
• Wickes 2000