Premium Material: The universal water supply hose is made of food-grade POM material. It is environmentally friendly, odorless, safe, and non-toxic. Compared with metal connectors, it is stain-resistant, corrosion-resistant, and aging-resistant, ensuring long-term use. Product Advantages: The connector has different ends, featuring a 1/2-inch threaded connection on one side and a 1/4-inch quick connect head on the other, providing a reliable fit for DIY installations. Fine Workmanship: This adapter is precisely manufactured with a smooth surface and no burrs. Each component of the inlet fitting is securely connected and resistant to disconnection or breakage. It features clear internal threads and retaining rings for faster and easier installation. Multiple Uses: The water filter fitting can connect hoses to the water inlets of various appliances, such as water purifiers, refrigerators, water dispensers, and coffee makers. Instructions for Use: Ensure the tube is cut evenly and inserted 15 to 18mm deep into the interface. The tube interface has a tolerance of 5%.