I don't recommend it, not because the material is unsafe. From that standpoint your fine. I don't like it because all those little ridges in the inside tend to trap dirt and disturb the water flow, so it makes more noise. The hoses can not be cut to length, so you can have dips in the pipe that trap water.
Flexible PVC pipe is a much better choice. You can still bed it, cut it to length and connect it up with regular PVC cement and fittings.