System Features Vintage Air has created an exact reproduction of the most popular under dash air conditioner ever made. The Mark IV features an all-steel case built from the original tooling. The timeless look of chrome and real steel combined with Vintage Air's proven performance makes the new Mark IV a great choice for your period-perfect ride.Mounting brackets drain line and installation instructions are included. Instructions Installation Instructions download Vehicle Fitment warning California Proposition 65 arrow_drop_down WARNING: California proposition 65