Safety and environmental protection: All surfaces of our pressure valve are non-toxic, safe and environmentally friendly. The air compressor pressure relief valve has good workmanship and good protection of internal parts. Simple Installation: Our safety valve is lightweight, convenient and easy to install. It is a practical tool for watering the garden. Perfect Substitute: The pressure relief valve is an ideal substitute for the old valve or the broken valve, providing you with more convenience. Provide you with a good choice that you can't miss. Applicable objects---less our pressure valve is suitable for 3L/5L/8L backpack sprayers, and can be used for watering the garden. Easy to assemble and use. Sturdy and durable: The pressure reducing valve is made of high quality PP material, which is environmentally friendly, sturdy and practical, and can ensure long-lasting operation.