Go down and check coupons out. Remember to check price history if it is available. Do you want to know what the best price is?
Total length: 465mm, Max. water pressure: 8kg / square centimeter, Jet spray tip hole: 3mm
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. Hmmm… There is no active coupon in Banggood at this moment.
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): Hardware, TTxBG10, aff7off, bgssaff9, AFfbG10, BGhardware, BGBFAFF2019, BGCITYADS2019, 13f142, BG2020NS, BGMPB2020, bGhOnEy10, BGAFF10OFF, BGSS10%SW, BGdragonBoat, bgshOOp10, BGHWDEALS, BgoFErTaSchInA10, BgcLuBofErtA10, BGCuponation10, BGHONEY2110, BANGGOODSD, 00c906, BG00c906, ADMITAD2212, 2022ACTIESNL
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for Car Wash Water Spray Nozzle Gun is here.
Price records source(s): Gearbest, 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)).