Package arrived 39 days after ordering. Almost all of em got bent pins but nothing broken, they look ok and seem to be working. Though these 220V ones make some buzzing noise, vibrate and moonwalk on my desk while not connected to a water pipe (12V ones don't buzz like this, normally they just do the clicking sound relays make), but when connected to water they seem to perform just fine. PTFE tape advised.. I wasted one roll testing these.
The connection size is 3/4" BUT INSIDE IS NOT. Water presssure is not enough because of that.