In order to assure its lightness and a better stability, the silicone flexible of the Unity 4.0 hookah has a non-standard diameter, smaller than flexible usually sold and used on the market. This way, the Unity 4.0 hose is not compatible with standard glass handles that you can find on our website or in our stores. Luckily, if you broke your Unity glass handle, or you wish to improve your Unity 4.0 equipment, Darnashop proposes the original part.