100' Ft Roll Quick Sink PVC Weighted PVC Airline Tubing 3/8" ID X .687" OD Boxed 3/8" ID X .687" OD - Quick Sink PVC Hose - 100' Ft Roll Boxed Thick wall PVC hose is guaranteed not to crack or split! Works in all temperatures for easy installation even in cold weather! Common use - pond aeration, fisheries and equipment DO NOT PROVIDE A PO BOX FOR SHIPPING AT CHECKOUT