7A 7A 7AA, 8A, R434A, R 437A. Ideal for use in air conditioning and refrigeration systems. Split Flaring Nut For Air Conditioning 3/8″ Flare Coupler For Copper Refrigerant Pipes - HVAC AC Air Conditioning Connector With 2 Nuts - R410A R32 Compatible - AC Vent HVAC Refrigerant Line Fitting Nuts Specification: Product name: flange union nut Weight: 35 g., Colour: brass. Our range of brass flare fittings create a pressure-resistant, leak-tight seal and are ideal for use in air conditioning applications. There's more than a good chance we'll have every standard brass flare fitting available Reliably prevents refrigerant leakage. High-quality brass design: the flaring union nuts are made of solid brass, which has stable performance and a long service life. Suitable for HFCs, HFC and R744 (CO2) refrigerants such as R1234yf, R134a, R23, R32, R404A, R407A, R407C, R407F, R410A, R417A, R422A, R422D, R423A, R424A, R424A. Wide application: air conditioning split flaring union nut can be used for refrigerant pipes with a diameter of 6., 35 mm. Package contents: 2 pieces flaring union nut 1/4 inch, thread size 1/4 inch flaring, length 17 mm, inner diameter 6., 35 mm, hex width 9., 66 mm Brass Flare Nuts | Air Conditioning | Copper & Brass Flare Fittings | Flare Fittings | Alpha Wholesale HVAC Product details: Pack of 2 flaring union nuts 1/4 inch for refrigerant lighting 1/4 inch air conditioners. Flaring Tool Kit set 2 pieces | Generic flaring tool | 5/8, 3/8, 1/4, 3... 【Wide Applications】Includes 2 pieces flaring nuts for different applications.