Amazon.com - roborock Robotic Vacuum Microfiber Mopping Cloth S6, S5, E25, E20 Robot Vacuum, 2 Pieces - https://www.amazon.com/Roborock-Robotic-Microfiber-Mopping-Generation/dp/B07BRH2TN7/ref=sr16?m=A2NZXCP1D8DIIH&marketplaceID=ATVPDKIKX0DER&qid=1576142206&s=merchant-items&sr=1-6 Shop for the roborock Robotic Vacuum Microfiber Mopping Cloth S6, S5, E25, E20 Robot Vacuum, 2 Pieces at the Amazon Roborock Technology Co. Ltd Store. Find products from roborock with the lowest prices.
I have learned the filter, side brush, main brush and main brush cover can be used for all Roborock models. I learned this from Roborock Support. I have a cross reference image but I cannot post it here.
Filter and brush of S4 and S5 are interchangeable. You could take the picture below as reference.
You could purchase from the link below:
Amazon.com - roborock Robotic Vacuum Microfiber Mopping Cloth S6, S5, E25, E20 Robot Vacuum, 2 Pieces -
https://www.amazon.com/Roborock-Robotic-Microfiber-Mopping-Generation/dp/B07BRH2TN7/ref=sr16?m=A2NZXCP1D8DIIH&marketplaceID=ATVPDKIKX0DER&qid=1576142206&s=merchant-items&sr=1-6https://www.aliexpress.com/item/32917164355.html