Vendeur: julieannemark (19.934) 99.9%, Lieu où se trouve: Beverley, East Riding of Yorkshire, Lieu de livraison: Worldwide, Numéro de l'objet: 171108753381 Brand: TRIXIE, MPN: Does Not Apply, Les Détails: NON RETURN VALVES Safeguard your aquarium products by using this simple piece of equipment. Your expensive air pumps can soon become damged if a power cut stops the air, as water then siphons back down the airline into the pump. Normally this is terminal for your pump and also causes flooding in your house as the pumps are very rarely water tight. But you can simply cut the airline and insert one of these on each line to avoid this. Also these allow you to safely install the pump below the waterline of your aquarium.