Aliexpress
Click here… to search for 290x165x45cm Inflatable Swimming Pool [EU] on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in Europe 
. Uhm… There’s no price history (in my database) for this product right now. I found coupon for you. Check this out.
Link: Banggood product page
Coupon (48.59 USD): BGTOYSALES
(CouponsFromChina.com tip: apply code in your basket (cart) after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): 8wEbgaInS5, pROMo8cuPoN, BG8RCToy, BGRCT10
(these coupons are old, so probably won’t work)
Price history and price alert
It’s a new item in our database, so I can’t create price history chart. We have saved this price in database: 15.99 USD.
You can set price alert (for Banggood).