Hose to use with water butt pump?

So I just bought a water butt pump as some of you may have read, and I'm not sure what type/brand of hose to go for. The plan is to erect a polytunnel and so the hose would need to reach to the end, which I estimate would be a maximum of about 100 meters from the furthest butt. The pump manual says that the pump is fitted with standard connectors for a garden hose, and states the max capacity as 5200 l/h.

Would there be an advantage to using a thicker than normal hose? Could anyone recommend a hose/brand to look for?