General description This R134a High/Low Conversion Adjustable Quick Connect Adapter is designed for use with air conditioning manifold gauges. It serves as a high/low pressure conversion adapter and features a 1/4 inch SAE male thread, making it compatible with all R134a service hoses. The adjustable quick coupler is perfect for your car's air conditioning system. Technical specifications Adapter for R134a refrigerant cartridges 1/2 inch ACME female thread x 1/4 inch male thread Constructed from aluminum, copper, and bronze High and low pressure switches made of aluminum Adapter made of copper Housing made of galvanized bronze Compatibility and accessories Compatible with all models of air conditioning manifold gauges Connects to all R134a service hoses Usage Ideal for HVAC air conditioning instruments Durable and easy to maintain