Extend the reach of your aeration system Stays submerged even when filled with air. Kink and puncture resistant construction Flexible For Easy Installation Extend your aeration system's reach with Airmax EasySet Weighted Airline. Designed for underwater applications Airmax EasySet Weighted Airline rests on the bottom of your pond and is guaranteed not float even when filled with air. With a thick-wall and lead-free construction EasySet Weighted Airline creates a durable fish-safe kink-free and puncture resistant airline for years of continuous use. Order your pond supplies online today! Need to connect rolls of EasySet Weighted Airline? Use the EasySet Airline Connector Kits.