Features: Pressure rating 0-10 bar. Temperature rating 0-120°C. Three standard thread sizes available: 1/8-inch, 1/4-inch. Suitable for floor heating systems. During installation, do not use hands to twist the header in a straight line. Avoid pulling or rotating the header manually, as uneven force may cause deformation or damage to the internal structure or sealing ring. Use an external wrench for secure installation. Specifications: Material: Plastic Thread Size: 1/8-inch, 1/4-inch (optional) External Thread Diameter: 9.5 ± 0.2 mm Internal Thread Diameter: 8.8 ± 0.2 mm Pressure Range: 0-10 bar Temperature Range: 0-120°C Installation Guide for Home Water Distributor: 1. Locate the mounting hole on the water distributor and measure the internal thread size using calipers. 2. Confirm compatibility, then use a wrench to securely install the gauge to monitor pressure and temperature. Note: Please allow 1-3 cm error due to manual measurement. Ensure you are comfortable with this tolerance before purchasing. Due to differences in monitor displays, the image may not reflect the actual color of the item. Package Includes: 1 x Temperature Pressure Gauge