Ultra Cover for In-Ground Pools

So it says 5 ft of extra material - so for instance, if it says 20 X 40 - the cover is actually 25 x 45?

and do these include water bags like the ones on the robelle website?

Water bags are sold separately.

RE: size- the sizing we list is the largest size pool that the cover will fit. The extra 5’ thing is kinda confusing and I think we’re working to make that more clear on our sales page.