Feature: 1. The water inlet and outlet adopt 1/2in thread interface, and the water inlet and outlet can be adjusted or closed. 2. Use anti‑yellowing material, which is 5 times that of ordinary ABS material, anti‑oxidation and ultraviolet rays, built‑in interfaces are made of pure copper, anti‑corrosion and durable. 3. It has a wide range of uses, suitable for caravans, recreational vehicles, ships, RVs, etc. Let you enjoy the shower without restriction during the journey. 4. There is a size adjustment switch at the water outlet valve, you can control the size of the water at will, or close the water flow. 5. Quick connection to add water, quick connection to drain, adjustable water volume, easy to use and simple to install. Specification: Item Type: RV Exterior Shower Box Material: ABS Color: Black Total Size: Approx .138x115x142mm / 5.4x4.5x5.6in Hole Size: Approx.108x95mm / 4.3x3.7in Inlet and Outlet Interface: Approx. 20mm/ 0.8in(1/2in thread) Package List: 1 x RV Exterior Shower Box 5 x Fixing Screw Note: Please note that the new type and old type of this product will be sent randomly and make sure you will not mind before ordering.