I just ordered this tarp today, I have a best way 300x200. In my opinion you will have too much play, the tarpaulin will stay in place thanks to the tension. I have no idea if there is a tarp in your size available.
I bought it for my pool (300x175). The cover is a bit loose on the sides, but OK. Rather perfect for pools with 300x200 dimensions. For 220x150 I would rather look for another alternative, as the cover would probably be too big / too loose unless you improvise something.
Tip: Always empty out rainwater, otherwise the weld seams can tear.
In my case I solved it similarly: https://www.youtube.com/watch?v=qWUNG4GX-kk . You can get the PVC pipes at Jumbo, Obi, etc.
Hello yes it fits but is not recommendable after 3 weeks already broken in various places absolutely not worth the price. Better buy a normal 3x4m sheet with eyelets, costs half the price but at least it lasts.