Flat-sealing for central heating and cooling systems with closed circuits. Maximum operating pressure: 10 bar. Maximum operating temperature: 100 °C. Pre-assembled manifold with flow and return bars, including venting and end plugs. Heating circuit connections with G 3. Additional technical features include flow and return connection with female thread, mounting material included, venting included, pump not included, thermometer not included, wall mounting bracket included, nominal diameter of flow and return connection is 1 inch (25), closable heating circuits available, material is stainless steel, and the maximum number of additional heating circuits is 0.