The Kärcher 63903550 (formerly 6.390-355.0) is a genuine transparent PVC suction hose, designed for efficient water intake with various Kärcher pumps and wet/dry vacuum cleaners. This flexible hose measures 5000 mm in length and has an internal diameter of 19 mm (3/4 inch), allowing for visual inspection of water flow and potential blockages. It is built to withstand temperatures up to 60°C, ensuring reliable performance in demanding applications. Ideal for garden pumps, submersible pumps, and multi-purpose vacuum cleaners, this accessory ensures a secure and clear connection for water suction tasks.