Some taps may have constant flow regulators included in the aerator fitting or shower. This is particularly important for buildings that have fluctuating water pressures. For example in most hotels the ground floor water pressure is normally better than the top floor. With a CFR added to the water outlet it ensures a constant flow of water regardless of fluctuating water pressures across all floors. This ensures a better experience for all guests using the bathroom. Please change this last sentence to: “Our CFR’s are manufactured to the highest standards by R.C.Mannesmann GmbH in Germany. Most are suitable for low water pressures and hard water areas”.