Afridev hand Pumps.

,

for use in boreholes up to 45 meters deep, with a 4″ diameter and 63mm cylinder.
Borehole diameter: minimum 100mm, maximum 150mm
Pump performance with 63mm cylinder (based on 50-full-strokes/minute): At 30m: capacity 0.4125 litres/stroke, output 1240 litres/hour.

for use in boreholes up to 45 meters deep, with a 4″ diameter and 63mm cylinder.
Borehole diameter: minimum 100mm, maximum 150mm
Pump performance with 63mm cylinder (based on 50-full-strokes/minute): At 30m: capacity 0.4125 litres/stroke, output 1240 litres/hour.