Model K-CW01, Power 500W (Max), Brand KROAK, Bare metal net weight about 2.3kg, Configuration water pipe 5 meters, Battery capacity 12000mAh, Peak pressure 50bar, Battery life about 60 minutes, Product Name Car Washer, Voltage 25V, Overall size 27*7.5*27.5cm, Range 6-8 meters.
Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
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. Well, there is one coupon available right now.
Link: Banggood product page
1. ($90.63): BGSCM11
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG4f7ffd, BGa5c8d4, BGaea5d3, BG171f3d, BGCL175, BGSCM75, BG22264a, BG589b2e, BG1ab5ea, BG68a270, BGe040d3, BGCAR639, BG5460d7, BG0ed177, BG9d96b7
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – KROAK 500W 50Bar 12000mAh Spray Water Pump [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for KROAK 500W 50Bar 12000mAh Spray Water Pump. The lowest price was: $45.99.
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)).