There are two walls in the file:
17W x 15D x 84 H Polys (203825)
33W x 15D x 84H Polys (411514)
No textures required

https://www.soothingcompany.com/products/midwest-tropical-fountain-aqua-fall-floor-fountain?variant12315912372277 
https://www.soothingcompany.com/products/aquafall-waterfall-floor-fountain-large