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A rubber cable gland is designed to create a watertight and dustproof seal around electrical cables in boiler and burner systems. This component is crucial for protecting sensitive electronics from moisture and contaminants, which can cause malfunctions or safety hazards. The rubber material offers excellent elasticity, accommodating different cable sizes while maintaining a firm hold. It is a standard part in heating equipment maintenance, often used when replacing cables or upgrading control panels. By ensuring a proper seal, this gland contributes to the overall safety and durability of your system, making it a must-have spare part.