1x Blade, 1x Comb, 5x Mop Cloth, 6x Side Brush, 6x HEPA Filter, 2x Roller Brush, 12x Water Tank Filter.
You can create price alert here, copy coupons and view price history. What is best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($28.25): 8Couponsde
2. ($28.25): MVC8SPRING
3. ($28.56): 2203ActiesNL
apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGwhielabel, 13f142, BG10OFFAFF1, BANGGOODSD, 00c906, ADMITAD2212, 2022ACTIESNL, BGAlerabat1, Terence, Tabby20, BG1efeb0
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for 33 pcs. 1S S50 S51 S55 S5 S6 Vacuum Cleaner Spare Parts. The lowest price was: $19.99.
Price records source(s): Banggood
Click on image to enlarge. 
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)).