This solenoid valve is a 3/4 inch, two-way normally closed stainless steel valve with a pneumatic actuator. It is designed and manufactured by Johnson Controls, a leading company in the HVAC industry. The VG7443LT+3003E model has a pressure range of 9-13 bar and is suitable for use in various HVAC applications. The valve's durable construction ensures reliable performance and longevity, while the pneumatic actuator allows for precise control of fluid flow. This product is an excellent choice for HVAC service technicians looking for a high-quality solenoid valve that can withstand harsh environments and provide accurate control.