300 GPH Pump320 GPH Pump by Campania International The 300 gph pump, commonly called the PK300, is ideal for small and tabletop Campania International fountains. Its flow rate is 320 gallons per hour. Campania International offers a one year warranty for standard use on its pumps. The fountain tubing assembly is not included unless specified. To order your pump kit with your pump or if you have any additional questions, please email customercare@garden fountains.