This replacement parts set is designed to extend the service life of your 15 litre backpack sprayer, providing essential components for routine maintenance and repairs. The kit contains 19 pieces including O-rings, seals and other critical spare parts that ensure reliable operation and prevent leaks. Regular maintenance of pressure sprayers is essential for professional results, particularly when applying pesticides, herbicides, fertilisers or cleaning solutions. Having this comprehensive spares kit on hand minimises downtime and helps maintain consistent spray performance across agricultural, horticultural and commercial cleaning applications. The kit is specifically engineered for Spear and Jackson 15 litre backpack style pump action pressure sprayers, ensuring precise fitment of all components. By replacing worn seals and O-rings before they fail completely, you can prevent costly pump damage and maintain optimal pressure throughout the spray cycle. Features and Benefits:19-piece