The Heavy Duty Motor Pump Unit 4.5 LPM is a high-quality pump assembly designed for use in agricultural battery-operated and knapsack sprayers. With a discharge rate of 4.5 liters per minute, it ensures effective liquid spraying for pesticides, herbicides, and fertilizers. Built from durable, corrosion-resistant materials, this compact motor-pump unit delivers stable suction, efficient discharge, and long service life in even demanding farm conditions. Compatible with most 12V battery sprayers, it serves as a reliable replacement unit for sprayer repair or enhancement. Easy to install and low in maintenance, it ensures consistent spraying pressure across crops, orchards, nurseries, and plantations. This unit is a vital component for farmers and gardeners to maintain crop health and efficient spraying operations.