The Heavy Duty Double Pump Head for Knapsack Sprayer is a powerful replacement part designed to enhance spraying efficiency and coverage for agricultural and gardening tasks. Equipped with dual pumping action, it delivers higher pressure and more consistent spray output, making it ideal for pesticides, herbicides, and fertilizers. Built with durable, corrosion-resistant materials, this pump head ensures long performance life even under heavy use. Compatible with most 12V battery-operated and manual knapsack sprayers, it provides reliable suction and fluid discharge for field, plantation, and orchard spraying. Easy to install and maintain, this double pump head helps farmers and gardeners achieve better spray uniformity and reduce spraying time. It is an essential spare part for maintaining sprayer efficiency in crop protection tasks.