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Description
The Spare Vacuum Tube is a high-quality replacement glass tube designed for evacuated tube solar water heating systems. Built with borosilicate glass and a selective solar coating, this tube efficiently absorbs sunlight and transfers heat to the water inside the system. Ideal for replacing broken or inefficient tubes in heat pipe or direct-flow solar collectors, it restores your solar water heater’s performance without needing to replace the full system. The vacuum-sealed design ensures excellent insulation and thermal efficiency, even in colder or cloudy weather.
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