Flexible grey water hose, available in various diameters and lengths (4/6; 9/12; 12/16; 16/22; 19/27) Ready to use, especially for use with aquatic animals, free of heavy metals and other toxins Premium quality for aquariums, ponds or aqua-terrariums. Resistant to ozone, salt, acids, alkalis, grease and solvents (non-polar) Grey-transparent colour, prevents algae formation in the hose better than in transparent hoses Package contents: grey-transparent water hose, length: 2.5 m or 4 m allergen information : bpa free; age range description : all life stages