The GRK Pressure Reducers are conceived for the air and cold and hot water up to 80°C. These devices are destined to domestic or industrial use but also for electrical equipment protection ( as water-heater). The GRK Pressure Reducers are equiped with a wadded rubber membrane in polyamide texture. The principle of our devices, their conception and their internal shapes makes them particularly silent and almost unaffected by incrustation. These devices are conceived, made and tested unitarily in our factory in Friville. The date of the factory exit is marked on the body of each of our reducers.