Smith Performance Sprayers are built to work as hard as you do. They are durable, professional products with an emphasis on chemical resistance and built to withstand the most demanding work conditions. The NL400 4-Gallon Turf and Agriculture Series No Leak Pump Backpack Sprayer is perfect for large landscaping and agriculture jobs. The NL400 has more than 3x the cycle life without critical failure compared to the competition – along with having fewer repair parts and the fastest repair time! The internal pump design will never leave chemicals dripping down your back; and the internal paddles, activated by pump action, mix wet table powders and water-based chemicals alike. The high grade Viton seals throughout the pump and shut-off allow this sprayer to stand up to tough chemicals, and they are easily changed without using tools. The foldable pump handle reverses for left- or right-handed use, and the tank has a built-in carry handle with wand storage. Also features a breathable, full coverage, padded ballistic nylon harness for all-day comfort. It includes an adjustable chest clip and lumbar support to keep the sprayer in place at a consistent level with no bouncing. Multiple nozzles are included for ultimate versatility: wide flat fan nozzle (red, 0.25 GPM, angled at 70 Degree), narrow flat fan nozzle (yellow, 0.15 GPM, angled at 30 Degree), and adjustable brass nozzle (enables stream to cone patterns). Also accepts Tee Jet nozzles. Clean only with water. Remove liquid from wand and hose and remove pump after cleaning to ensure adequate drying.