Size measures about internal diameter: 4mm/0.16"; outside diameter: 6mm/0.24".
Suction Cup Diameter : 2.6cm/1", Fit Airline Diameter : 0.5cm/0.2".
Safe for salt water and freshwater.Flexible and durable.
Check the tubing Dia. before place your order.
Package Included :1 x 20-feet Airline Tubing ,10 x Suction Cups
This 20ft flexible airline tubing is a great way to hide necessary airline tubing in your aquarium.
Great for all your aquarium airline needs.
And as a plus, we offer you 10 pcs of aquarium suction cups which have super strong suction, so you don't need to buy extra suction cups.
Saim 20 Feet Aquarium Airline Tubing Air Pump Accessories - B01MF9QMHV