You are purchasing a single reducer piece connector suitable for 12mm and 6mm internal diameter tubes.

Temperature: -30 +140 C
Size: 7cm
Usable length: 2.8cm and 2.6cm

Easy Push-fit
High Quality

Can be used with water, Air, Fuel, anti-Freeze, Petrol, Diesel etc.
Can be used in Marine, Aquarium and Ponds hose connections.