Just check coupons out (with price alert and history). What is best price?
2x Roll Brushes, 1x White Comb, 3x 5-arm Side brushes, 1x Yellow Brush, 3x Filters
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. I can’t tell you if this price is good – not enough records in my database, so I won’t judge. I found coupon for you. Check this out.
Link: Banggood product page
1. ($21.61): BG00c906
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG10PCS5, BGCITYADS2019, BG10PCSVC, aff7off, BG10PCS5D, bGpAnDacHeCk, BG10PCSXS, 2020CNY, BGVDay10%off, BG10PCSFT, BGHOMEAPP, BGTT10, bGhOnEy10, BG10PCSCN, BGAFF7OFF, BGSS10%SW, BG10PCSCZ8, bgshOOp10, BG10PCSTRCZ, BGHome15%, BGHOMEAPP13, BGHOMEA13, BG10PCSER, 13f142, BGRYSHO, BG10OFFAFF, BGACZXMP, BGwhielabel, BGCZDRXM, BG10OFFAFF1, BGCZFWUYA, BGa7ee42, BGc46e8f, BANGGOODSD, 00c906, ADMITAD2212, 2022ACTIESNL, Terence, Tabby20, 2203ActiesNL, BG1efeb0, MVC8SPRING, pROMo8cuPoN, BGJUNEGSG9, Cuponation9, BGAHPU13, BGeaf456, BG589b2e
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 10Pcs Replacement Parts for Roborock S6 S5 E35 E2 Vacuum Cleaner [NOT Original] ($27.71)
Price history and price alert
Price history is not available for this item (not enough database records)! The lowest price was $13.59 though.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).