Automotive Test Adapter Kit Includes:. 1/4 ID x 1 1/2 long (6.4 mm ID x 40 mm long) connection tube . 5/32 ID x 3 long (4 mm ID x 75 mm long) connection tube . 1/4 ID x 3 5/8 long (6.4 mm ID x 90 mm long) connection tube . Rubber cup adapter . 5/32 ID x 1/4 ID (4 mm ID x 6.4 mm ID) tubing adapter . (4) Tapered adapters for connecting to tubing from .090 to .50 ID (2.3 mm to 12.7 mm ID) . (2) Tapered manifold plugs MVA6912 No -