Unfortunately, the nylon and brass brushes for the PureClean XL are not available for purchase.
However, we have found that similar brushes can be purchased on Amazon. Please use the links below to locate the desired brush set.
Brass Brushes Only: https://www.amazon.com/gp/product/B06XS4HNB8
Nylon & Brass Brushes: https://www.amazon.com/Wagner-0282123-282123-Nozzle-Accessory/dp/B010MCJZD8
If you have any further questions, please reach out to us by submitting a ticket or calling 1-657-275-3734 Monday through Friday 8 am PST to 5 pm PST.