Stella Concentrator Nozzle Dryer Attachment #Noz04 Review PrettyKit Hair Dryers & Accessories November 26, 2018#EANF#, Beauty & Personal Care, Hair Care, STELLA PRO, Styling Tools & Appliances 0 Comment Fits most hair dryers Converts your dryer into a hot air concentrator Perfect for enhancing the body and adding volume of straight hair. More The Stella 4 Salon Universal Concentrator Nozzle will fit all hair dryers with 2″ or smaller barrel.