The Lisle Corporation 18-pc Spill-Free Funnel, No. 24780, includes five radiator adapters and six caps to fit most cars, pickups, trucks, and many farm tractors. The funnel is designed to control the proper amount of coolant entering the system and enables unattended filling of the cooling system. By being clear, the funnel allows quick visual checks of the coolant from across the shop. The set comes with a lid to keep contaminants out as well as store the caps and adapters. Two straight extensions and two 45-degree elbows for angled and hard-to-reach applications are also included.