Sinking Air line 4mm

Description

4mm id Sinking Air Line

Purchase by the Mtr exactly how much you require…. or by larger amounts

4mm id sinking air line a great product and very nice quality too,we use this ourselves on our main ponds in the shop and find it works perfectly, so much nicer than having all the air lines floating.

Size
Internal Diameter 4mm
External Diameter 7mm

This fits perfectly onto our 50mm round air stones