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 . You can get the PVC pipes at Jumbo, Obi, etc.