Features: Easy to install. Pressure rating 0-10 bar. Temperature rating 0-120°C. Suitable for floor heating system. During installation, do not manually rotate the header or pull the straight line wire. Avoid applying force directly by hand, as uneven pressure may cause deformation or damage to the internal structure or seals. Use an external wrench for tightening. Specifications: Material: Plastic Diameter: Approx. 10 cm / 3.93 inch Thread: G1/4 External thread diameter: 12.5 ± 0.3 mm Internal thread diameter: 11.5 ± 0.3 mm Pressure range: 0-10 bar Temperature range: 0-120°C Note: 1. Locate the mounting hole on the water distributor and measure the internal thread size using calipers. 2. Confirm compatibility for installation, then use a wrench to securely tighten the gauge to monitor pressure and temperature. Package includes: 1 x Temperature Pressure Gauge