Stex liquid drain cleaner 1l. professional liquid drain cleaner suitable for removing blockages and unpleasant odors caused by, for example, hair, soap, oil, grease and food residues in kitchen sink drains, washbasins, showers and bathtubs in bathrooms, kitchen and toilet. suitable for materials including synthetics (pvc, pvcc, abs, acrylic), enamel, porcelain and metals (copper, stainless steel, chrome, iron) with the exception of aluminum. also suitable for preventive use