Description: Made of high quality brass, durable in use. Dual couplings for joining two tubes of the same diameter. The use of advanced casting , the product more solid and beautiful Good sealing, easy installation and maintenance, safe and reliable work Capable of joining a variety of tubing materials such as stainless steel, copper, and rigid and semi-rigid plastics and polymers. Specification: Material: Brass Color: As picture shown φ6 Connector Diameter: Approx.6 mm / 0.24 inch φ8 Connector Diameter: Approx.8 mm / 0.31 inch φ10 Connector Diameter: Approx.10 mm / 0.39 inch φ12 Connector Diameter: Approx.12 mm / 0.47 inch φ16 Connector Diameter: Approx.16 mm / 0.63 inch φ19 Connector Diameter: Approx.19 mm / 0.75 inch Make sure this fits by entering your model number. Package Includes: 1 Piece Brass1/2" (4 points) Connector Note: As different computers display colors differently, the color of the actual item may vary slightly from the above images. There is 2-3% difference according to manual measurement. Please check the measurement chart carefully before you buy the item.