$36.99 – eWelink APP WiFi Smart Valve Water Gas Shutoff Automated Ball Valve DN15/DN20/DN25 Wireless Control for Alexa GoogleAlice – DN25.
ATM you can buy eWelink APP WiFi Smart Valve Water Gas Shutoff Automated Ball Valve for $36.99 (in Banggood). Get coupons, create price alert or check price history out! Let’s see what best price is ATM.
Latest price update (UTC time):
Banggood ($36.99)
Banggood warehouse is located in China. You probably want to know if this is a good price. Actually this is the best price in history according to CouponsFromChina database! There is one great coupon!
Link: Banggood product page
Price without coupon: $38.99
1. ($36.99): BG3e8873
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
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.
Price history and price alert
Price history (for all/most countries) for eWelink APP WiFi Smart Valve Water Gas Shutoff Automated Ball Valve is here. The lowest price was: $36.99.
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)).