Hair trap for ∅90 mm floor drain

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The hair trap is designed to make it easier to clear the hair blocking the floor drain. The trap consist of 2 similar discs with 90° cross each other and 1 screw. The concept is like a polaroid for light. In case the hair could flow with water through the first layer gills, the hair will certainly be trapped by the second layer with 90° rotated gills. Another way of trapping the hair is to add some plastic mesh between the discs. This will increase the effectiveness of trapping hair but may reduce the over flow of water. The design is good for ∅90 mm floor drain in bathroom or kitchen.