Square four-way diffusers. With easy access by pressing the PUSH fasteners The DFZ-S4 series perforated diffusers are designed to be applied in air conditioning ventilation and heating systems. They can be mounted in false ceilings. The face design DFZ-S4 diffuser cause a 4- way horizontal air supply with an accentuate coanda effect. Their multiple small openings provides a high level of induction rate, emitting a uniform air flow all over the passage section. The DZF-S4 series diffuser admit a flow variation of 60 % Keeping the air stream stable. These diffusers can be used from 2.6 up to 4 meters high and at a temperature differential up to 12 ºC. Its sober and discreet design gives to DFZ-S4 series an excellent capacity of integration with modern ceiling constructions.