Based on this product's specifications, here are some alternatives and similar models
Vacuum cleaner rubber main brush Roborock 8.02.0438 for Q7 Q7 Max Q7 Max+ S7 S7+ S7 MaxV S7 MaxV Ultra Q Revo Q Revo MaxV
Summary description:
Replacement rubber main brush compatible with Roborock models Q7, Q7 Max, Q7 Max+, S7, S7+, S7 MaxV, S7 MaxV Ultra, Q Revo and Q Revo MaxV. Supplied as part number 8.02.0438 (MPN). Designed to fit into the robot vacuum’s main brush slot to lift and transport debris from floors and carpets. Practical for restoring cleaning performance and maintaining optimal suction and pick-up.