Features: 1/4 inch male air compressor quick plug to a Female 3/4 inch garden hose inner thread and 1/4 Inch Male Quick Connecting Plug and 3/4 inch Male GHT Thread, this is standard size and can be applied in most cases. Standard threading for most conditions, easy attach to water hose systems to make winterization solution. Adopt brass, it is wear resistant, adaptable to various harsh environments, and have a long service life. 1/4" Quick Connecting garden watering adapter with quick connecting design, convenient and efficient, improving work efficiency. Winterize Blowout Adapter is suitable for various boats, travel trailers and vehicles with water supply systems. Specifications: Material:Brass Type:4Pack,6Pack Package Includes: 4/6Pcs Winterize Blowout Adapter note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.