Quality Silicone Roll 20m x 6mm of AIR LINE TUBING For Aquarium / Fish Tanks & Small Pond Air Pumps (please note this airline is 6mm external and 4mm internal as per standard aquarium airline, but is the soft silicone version not the cheap hard plastic airline that most sell) Directions install air pump on a level surface above the aquarium if the air pump is placed below the waterline always use a check valve NEVER place the air pump where it can come into contact with water verify that your airline is kink free.
Best Quality Silicone airline
Suitable for Aquariums or Fish ponds
Soft kink free silicone 4mm/6mm (NOT the cheap plastic airline)
Ideal for connecting airstones or bubble curtains
Convenient 20m length for you to cut to your required length