Model 1322   Model 1308   Model 2503   Model 2507  
Vertical Lift GPM Watts GPM Watts GPM Watts GPM Watts
20 feet 0.51 27 1.25 30 2.50 48 4.00 57
40 0.51 32 1.25 48 2.50 60 3.95 78
60 0.51 36 1.20 54 2.40 78 3.90 102
80 0.49 40 1.20 60 2.30 93 3.90 120
100 0.49 45 1.20 66 2.30 105 3.85 144
120 0.48 50 1.20 66 2.25 120 3.80 165
140 0.48 56 1.20 75 2.20 138 3.65 195
160 0.47 62 1.20 84 2.20 153    
180 0.47 68 1.18 93 2.15 165    
200 0.47 74 1.16 99 2.15 180    
240 0.45 90 1.14 117 2.15 204    
280 0.44 102 1.10 135        
320 0.41 120 1.10 156        
360 0.41 134 1.05 171        
400 0.40 150 1.00 198        
440 0.39 168 1.10 269
 
 

Note: Calculated values in table measured at array direct voltage. A battery powered setup will have 10% less flow and wattage. 
* For PV direct pumping, array watts must exceed pump watts by 20% or more. A Current booster controller is also required.
** To approximate gallons supplied per day, multiply the appropriate GPM figure by 60, and then by the peak hours of insolation per day (in your area).