Features: Enhances your pool and spa systems efficiency with our high flow manual air release valves, featuring a pressure gauge for monitoring and control. This air release valves ensures reliable performances across various systems. Ideal for industrial maintenance personnel, engineers, and professional managing complex systems, ensuring operation and safety. Perfect for use in factory pipelines systems, HVAC equipment, and water treatments facilities where effective air discharge is important for systems efficiency. This replacement part includes a pressure gauge, gauge plug, O rings, clip, and tape, making it a essential tool for maintaining performances in any filtration setups. Specifications: Material: Plastic Package Includes: 1 Set Manual Air Relief Valves note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.