ATM you can buy AGSIVO 3000W 220V Instant Electric Water Heater Tap for $36.99 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
AGSIVO 3000W 220V Instant Electric Water Heater Tap Water Filter Tankless LED Digital Display EU Plug for Kitchen Bathroom
Latest price update (UTC time):
Banggood ($36.99)
Banggood warehouse is located in China. I have no active coupons for you right now. Low/high price? This price is higher than average price ($26.99) for this item.
Link: Banggood product page
Price: $36.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG8FORMULAMX
(probably won’t work, but you can try them out)
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for AGSIVO 3000W 220V Instant Electric Water Heater Tap.
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)).