uxcell Vehical AC R134a Quick Coupler Adapter High Low Side Tool Silver Tone Product Name: AC Quick Coupler; Dimension: 5.2 x 2.2cm / 2" x 0.9"(L*D) Material: Metal; Color: Silver, Brass Tone Package Content: 2 x AC Quick Coupler Male Thread Diameter: 11mm / 1/8 NPT Adapter Port Diameter: 16mm / 0.63"