Need flexible brush to clean Hot Water Heater tube

NanciL wrote:
Most RV dealers that have stores, have them made just for that.
I bought one just to have, but so far have never used it.

Jack L

Thanks, That will work good on the little burner, but heres what I just found for the 'S' curve heat exchanger and it comes in various size brushes from 1"-4" : http://www.brushtechbrushes.com/appliance-brushes/mini-snake-brush-for-ducts-32-long.html