Replace the vacuum cleaner main brush cover, with higher accessory fit and alignment, making the entire machine run more smoothly and stably, streamlining the cleaning process, and providing a better daily user experience. Replacing the main brush cover optimizes protection, securely gathering various debris during cleaning, preventing overflow, and keeping the home cleaning environment tidy and organized. Replacing the vacuum roller brush protective cover ensures even force during roller operation, fully unleashing cleaning capability, and allowing all dirt on the floor to be cleaned effectively. Replacing the floor-cleaning machine main brush cover resolves jamming and stalling issues, enabling the device to operate continuously and stably, improving the side shielding structure to block small external debris from entering the machine, reducing internal debris accumulation, and making subsequent machine maintenance easier. Compatible for Conga， 3090， CRL 200A