Features: Ensures a flawlesses operations of your cooling systems with our air conditioning heat pump check valves, suitable for prevent backflow and maintain efficiency. Crafted from brass, this check valves boasts strong sealing capabilities, a reinforced pressure resistant structure, and a seal design that significantly reduces leakage rates. Suitable for professionals, maintenance technicians, and enthusiasts looking to enhance or repair their air conditioning, heat pump, or refrigeration systems. Multifuntional across various applications, our check valves seamlessly integrates into air conditioners, central cooling systems, cold storage units and plumbing projects. With its wide operating temperature range from -40℃ to 120℃, this check valves is a component that ensures consistent performances in even the most demanding environments. Specifications: Texture: Brass Suitable Temperature: -40 ℃~120 ℃ Size: As Pictures Show Package Includes: 1x Air Conditioning Heat Pump Check Valves note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.