PVC Made Square / Rectangular Diffusers find an application in humidification plants. PVC Made Square / Rectangular Diffuser are offered by S. M. Extrusions Pvt. Ltd which is ISO 9001:2000 accredited. S. M. Extrusions Pvt. Ltd also manufactures various types of extruded PVC profiles. The PVC Made Square / Rectangular Diffusers are unaffected by moisture and problems caused by corrosion. These Diffusers have low weight and is made of mild steel or extruded aluminium.