Kit for fully serviced pitches

After a soggy summer's caravanning we ended up in Dulverton (Exmoor - a favourite) on a fully serviced pitch for the first time.  I had enough waste water hose on board to make use of that facility, but not the kit needed to connect up to the mains water feed.

I like the idea of the serviced pitch but if I invest in a fresh water connection kit what would folk recommend?