MAYERI drain cleaner, 1L

Usage: If clogged, pour 500 ml of the product into the drain and leave for 1-2 hours (longer if necessary), then rinse with hot water. To prevent clogging, use the product 1-2 times a month (200 ml). Rinse with hot water after 1-2 hours. The product may damage various surfaces. Store the packaging in an upright position. Do not use in sinks made of natural materials (natural stone, wood, etc.). Composition: Composition: 15-30% sodium hydroxide. For cleaning sewer pipes and preventing them from clogging.