30m DeepWater Weighted AirlineThis 30m roll of weighted air hose (8mm internal diameter 18mm external diameter) is designed for use with DeepWater Aeration Systems. Built from durable, UV resistant materials, it provides a reliable connection between the shore mounted compressor cabinet and the submerged diffuser, and can also be used to extend existing airline runs. Each diffuser can be connected using up to 100m of weighted airline from the compressor. If required, an additional