Stainless steel air-operated sample pump.
- For 2 in. (50 mm) wells and larger.
- Model 1800 lifts up to 1,000 feet.
- Equipped with a 1 in. diameter pump piston for maximum flow rates at low pumping lifts.
- Intermediate lifts require a 7/8 in. diameter pump piston that reduces the flow rate.
- High lift applications require a 3/4 in. diameter pump piston with further reductions in pump flow rate.