Clear flow monitoring: Transparent walls let you see liquid movement and spot debris or air bubbles quickly Non-pressure liquid transfer designed for moving compatible palatable liquids, air, plant protection fluids and light chemicals Flexible yet durable: Non-reinforced PVC bends around equipment and resists hardening, abrasion, light and oxygen exposure Suited to compatible food contact, pond, aquarium, pump and irrigation applications Easy to use: Cut cleanly to the required length and push fully onto a correctly sized barb or fitting, Manufacturer: AP Supplies