Featuring a high-position shut- , this floor heating manifold valve core is equipped with an automatic spring mechanism for seamless operation. It is ideal for underfloor heating systems, providing consistent water flow and temperature control. The robust build ensures longevity and dependable performance, making it a valuable addition to any heating setup. Features -Color:Golden -Material:Copper, iron -Size: 5.50X3.00X3.00cm/2.16X1.18X1.18in -Thread part: G1/2 and G3/4 -Handle part thread: G1/2 and M30 x 1.5 -Handle post diameter: 4 mm. -Recommended tube diameter: 40.8 mm. -Anti-backflow design: the high position structure effectively prevents water back-flow, ensuring the stability of the underfloor heating system -Efficient water flow control: the shutoff spring valve core allows for precise water flow control, improving the efficiency of temperature adjustment -User-friendly operation: reset feature simplifies the operation, making it easy to quickly the underfloor heating system -Wide compatibility: ideal for all types of underfloor heating systems, whether in residential homes or commercial buildings, ensuring consistent heat distribution - construction: expertly crafted to minimize maintenance requirements, ensuring performance and extending the system's service life Package list: 4 x Spring valve core