membrane rubber is filled with certain kind of oil to minimize friction, abrasion and corrosion. Other cubicle creates pressure on water or chemical liquid. These pumps are not only used in ?NTAR ATOMIZERS and PULVERIZERS equipments, but also are usable in watering, pressure washing and conveying chemicals. All ?NTAR pumps can be operated by not only power takeoff of tractor but also by fuel or electrical motors. OUR PUMPS ARE MADE TO ADVANCED TECHNOLOGY SPECIFICATIONS AND NEED VERY LITTLE NAINTENANCE AND?OR SERVICE