This RV brass adapter with a 1/4 quick connect and 3/4 thread is designed for your RV's water system. Connect the adapter compressor and RV water inlet, then open the ball valve to allow air to flow through . Features -Color:Assorted Color -Material:Brass -Size:8.50X3.50X3.00cm/3.34X1.38X1.18in -Size:8.00X4.00X3.00cm/3.14X1.57X1.18in -Quick and easy connection: the quick connect feature allows for fast and effortless attachment and detachment, enhancing user convenience -Durable brass construction: made from brass, this adapter is designed to last, offering resistance to wear -Winter irrigation solution: this adapter is specifically designed to prevent freezing during winter, protecting your irrigation system from damage -Precise water flow control: the builtin ball valve provides precise control over water flow, allowing you to manage your water usage effectively - compatibility: compatible with 3/4 threaded connections, this adapter is suitable for a variety of rvs and camping vehicles, making it a versatile addition to Package list: 1 x set rv winterize blowout adapter kit