• Pure PVC hose: Flexible, durable, and scratch-resistant material. • Heavy-duty design: Thickened structure that allows for rough handling and repeated use without kinking. • Multi-purpose: Ideal for ventilation systems in aquariums, hydroponics, ponds, water gardens, and laboratories. • Standard dimensions: Length of 8 m with a diameter of 4-6 mm (4 mm inner and 6 mm outer). • High resistance: Withstands high temperatures, corrosion, and leaks for reliable long-term use. • Optimized flow: Smooth interior surface that prevents deposit buildup and ensures smooth air passage.