To use the blowout adapter, first, connect the quick connect plug to your garden hose. Next, attach the adapter compressor. Once everything is securely connected, turn on the air compressor to blow out any water from 's water lines. This process helps protect your RV's plumbing system from the harsh winter weather. Features - ColorGolden -Material:Copper - Size: 4.05X2.65X0.80cm/1.59X1.04X0.31in -Versatile application: ideal for winterizing rvs, campers, boats, garden , and travel trailers using an air compressor blowout method -Quick and : screws into 's inlet or a standard garden hose, providing a fast and connection -Compact design: the short and sturdy design allows easy access to tight spaces, making it highly practical for various uses -Durable and leakproof: the robust construction ensures , offering and reliable performance -Comprehensive winterize: connects effortlessly to garden faucets to winterize lawn sprinkler systems, drip irrigation systems, , and pipes, preventing freeze damage Package list: 4 x RV air blower adapter