Ritchie Part Number 15377 - Green Valve 3/4". Pictured as #16 in the parts diagram for the Ritchie OmniFount 3. The green valve 15377 is the standard valve for the OmniFount 3 for high water pressure, 60-80 psi to ensure adequate refill rate. Also available is a white valve 16697 for low water pressure, 5-40 psi - OR - a red valve 11101 for moderate water pressure, 40-60 psi. The water pressure of your installation may require you to change which valve you are using.