Simulaids,Replacement Airway System - Adult - Pack of 24 by Nasco Healthcare $239.95 Simulaids,Replacement Airway System - Adult - Pack of 24 / 149-1333 / Cart Title Simulaids,Replacement Airway System - Adult - Pack of 24 Product ID 149-1333 CheckoutType Cart Add to cart For use with Simulaids,Adult CPR Water Rescue Manikin (149-1328U).