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The Suction cap is a protective cover used on burner components or boiler parts to prevent debris from entering openings. It is typically placed over suction inlets or vents, ensuring that only clean air is drawn into the system. This cap helps maintain optimal combustion efficiency and protects sensitive internal parts from contamination. Made from durable material, it withstands the operating environment of heating equipment. Whether you are replacing a lost cap or performing preventive maintenance, this simple part plays a key role in keeping your burner or boiler running smoothly.