GERMAN PERFECTIONISM INSPIRES ULTIMATE CUSTOMER CONFIDENCE. We strive for an excellence that goes way beyond the surface of our products. In fact, from design to production and customer service we aim for nothing less than perfection at every stage. Our history of great German engineering, rigorous internal tests and numerous external certification processes are what gives our customers complete confidence in a name they can trust.Features:GROHE StarLight??" NPT male threadsCan be used with any shower head EXCEPT Rainshower? JumboDimensions: 11.5 in. long x 2.56 in. wide x 2.56 in. highAssembly Required.