This overflow has it all! It includes a fluid level gauge to view the amount of coolant in the overflow and a dump tube for any excess fluids. They each come with a CNC machined filler cap available in 4 different colors. Made from 6061 Aircraft Quality Aluminum, TIG welded, they are 8″ tall by 3″ round, 1 pint capacity (NHRA min.) Each unit features heavy duty brass fittings and a drain valve on the bottom to remove coolant when neccessary. Unlike other models these have a tube welded on the inside to help recirculate the coolant back into the system.

Body Height:8″

Body Diameter:3″

Barb Fitting Thread:1/4″ NPT

Barb Fitting Hose Size:3/8″ ID