Features: Experience the ease of installation with our quick connect 4 point internal thread fittings, designing to streamlined your water heater setup. Crafted from copper, these fittings boast superior heat resistance and corrosion proof properties, ensuring long lasting durability in demanding environments. For homeowners seeking solution for hot water heater maintenance and repair technicians looking for dependable parts for servicing. Application across residential settings for water heater installations or repairs, as well as in public facilities like schools, hotels, and hospitals. Ensures a secure and leak free connection with our robust fittings, enhancing the efficiency and stability of your water heating systems for consistent performances. Specifications: Component:Copper Diameter:Approx.2cm/0.78inch Package Includes: 10 Set Water Heater Fittings note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. ②.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.