Pond Pro Insulated airline pack. Invented here!
This airline is a must for proper maintenance free installation of aeration systems. Sold in 25, 50, or 100 ft rolls
one 1/2 inch I.D. polylines wrapped in insulation and a PVC sheath.
Best if installed underground. Can be left at the surface but may freeze if lengths are over 50 feet or not all lines used.
Run product into water below ice line for proper performance