Billet Specialties heat and AC bulkheads are engineered to work with 5/8” heater hose and one -6 and one -10 A/C line. Product Features: - Precision machined from 6061-T6 billet aluminum - Industry leading polish finish - Offset configuration allows clear access to lines and uniform hose routing in a minimum amount of space FITTINGS NOT INCLUDED ~ 2 PORT $42.95 ~ 4 PORT $69.95