Supplied as a set; the set includes an electrofusion coupler or reducer. -Material: PE100, SDR 11 (ISO S5). -10 bar gas / 16 bar water (calculated for a temperature of 20°C). -The electrofusion fitting resistance is embedded in the material. -Welding voltage: 40 V. -4 mm connectors. -Welding indicators with limited travel. Installation must be carried out according to the installation instructions by authorized personnel.