Basically copy coupon, view price history or create e-mail price alert. What is the best price?
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):
, Note Keep away from Yuba, Net Weight (g) 110mm, Cover size 120cm±3cm/47.24″ ± 1.18″ (Approx.), Interface size GB G1 / 2 thread, Net weight 224g, Product size 270 * 110 * 47mm
Banggood
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now…
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG15SH12, BGSTHO15, BGHONEY2110, BGSHOM15, 13f142, BGSHE15, 6GSGIT
(these coupons are old, so probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for Dabai High Pressure Shower Head? There we go.
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)).