The Spill-Free Funnel eliminates trapped air pockets which can cause erratic cooling system and heater performance. It controls the amount of coolant entering the system and enables unattended filling of the cooling system.
Improved with a Straight Extension and an additional 45° Elbow for hard-to-reach applications along with a Threaded Cap Adapter for Ford applications.
The Extension and additional 45° Elbow allow access to radiator caps located under engine shrouds or in fender wells. 
Includes five adapters to fit most domestic and import cars and light trucks.
New Funnel Head will be clear as to see movements of fluids