Water Tube Diameter is 3/8"Manufacturer's 1-year warranty included.Statue.com specializes in the design of brass fountain water features and sculptures that create excitement and elegance in all indoor and outdoor settings. The incredible detail inherent in our sculptures is created as each piece is cast in brass by the "Lost Wax " method, one at a time, ensuring exceptionally fine detail and lasting beauty. Pumps are not included. On the right hand side of the screen there is add on items. You can order 2 of the BBPK850 pump kit. Pump Kit- 850 gph. This fountain feature requires 2 pumps.