General description High and Low Side Expansion Adapter R134A Freon Quick Connector is designed for automotive air conditioning systems. This product includes quick coupler adapters that facilitate the connection of R134A refrigerant for car air conditioning maintenance. Technical specifications Item Type: Air-conditioning Installation High and Low R134A Quick Coupler Adapters Material: Brass Color: Red + Blue Blue Inside Diameter: 14 mm Red Inside Diameter: 17 mm Compatibility and accessories Compatible with R134A refrigerant Includes 2 x Quick Coupler (with cap) Other information Note: Light and different displays may cause the color of the item in the picture to differ slightly from the real thing. The measurement allowed error is +/- 1-3 cm.