You Are Here : Pond Products > Pumping and Filtering your Pond > Pond Air Pumps > Misc Air Pumps and Accessories > Evolution Aqua Black Sinking Airline - 4mm - 1m
To quote a well known brand of DIY products it "Does what it says on the tin" - provides a means of getting air to the pond and sinks !!
5 star stuff, great product
The hose did sink as it should
Does what it says sinks to the bottom of the pond