Netafim Super Flex UV White Polyethylene Tubing 5 mm -1000 ft Smart Pot The third ingredient is fulvic

The third ingredient is fulvic acid which gives you quicker nutrient absorption

The activated carbon absorbs and traps pollutant molecules within the carbon removing contaminants

and expanded clay pellets

Dimensions: 12" Flange Ducting x 24" Length

heavy duty construction throughout and Abscent's H20-guard zipper for 100% protection

Netafim Super Flex UV White Polyethylene Tubing 5 mm -1000 ft Smart Pot The third ingredient is fulvicWith excellent Ultra Violet (UV) resistance, our reflective white tubing is completely opaque to prevent algae growth. It withstands heat, direct sun and harsh chemicals while producing cooler water temperatures enhancing plant growth. The Super Flex tubing is solid opaque white. The white black poly tubing is white on the outside and black on the inside.