The Chihiros Filter Hose Pro is a premium grey PVC hose made from food-grade material, designed for high-performance aquarium filtration setups. Its ideal for both freshwater and marine tanks, offering excellent durability, a smooth surface, and long-lasting flexibility. Packaging detail: Each set contains 2 pieces of 1.5 meters, totaling 3 meters - ideal for separate inlet and outlet connections. Its key advantage is its permanent flexibility - the hose does not harden or crack over time, ensuring reliable use and easy reinstallation even after extended periods.Chihiros Filter Hose Pro+ high-quality, grey food-grade PVC hose+ permanently flexible - no hardening or brittleness+ smooth surface - easy to clean and algae-resistant+ tough and kink-resistant construction+ length: 21.5 m (total 3 m)+ available sizes: 9/12 mm, 12/16 mm, 16/21 mm, 19/25 mm+ compatible with external filters, glassware, CO2 systems, etc.+ suitable for both freshwater and marine aquariums