This vertical valve is an essential addition to any plumbing system, offering a reliable solution to prevent backflow. Its sturdy construction and dual internal threads ensure a secure and easy installation. Ideal for maintaining the integrity of your water supply, this valve prevents reverse flow and potential, ensuring a consistent and safe water flow. Features -Color:Golden -Material:Brass -Size:4.70X3.00X3.00cm/1.85X1.18X1.18in Thread Screw:1/2" -Brass: made from forged brass, this check valve offers excellent durability -Precision internal threads: the valve features precision internal threads for easy and secure installation, providing a tight connection -Compact and efficient: the dual offers a compact and reliable valve body structure, enhancing efficiency and flow rate -Flow prevention: this check valve allows fluid to only direction, preventing backflow and protecting your system from potential damage -Multiple uses: suitable for use in fluid systems, pneumatic systems, hvac systems, and more, providing backflow prevention and ensuring smooth operation Package list: 4 x Brass Vertical Check Valve