After some digging I was only able to find one worthy model – Kettler Weatherproof. In all honesty, I don’t see why would you ever need any other model specialized in outdoor usage like Garlando 500 or Open Air, they get absolutely outshined by Kettler.
This Italian made table is the cheapest option (you can just search for ‘outdoor foosball’ and see for yourself) and it is also one of the highest quality available.
The only downside I could see is the fact that it lacks counterbalanced men. But this is exactly the type of marketing feature that doesn’t affect the gameplay ever.
It still features important stuff like leg levelers, ‘unbreakable’ (whatever that means) players and telescopic steel rods, which is just awesome.
So don’t overthink this matter and go with the most proven product currently available. $1,000 is a starting price for the absolute majority of outdoor foosball tables and there’s no need to go further than any kettler model Kettler for about $1100, they are the safest bet.