Compatibility: Standard 1/2 inch NPT female and male fittings, compatible with most common shower arms in North America. This 90 degree shower elbow allows adjustment of the shower arm angle without restricting water flow or pressure. It can be rotated after installation for improved usability. The shower head connector fits most standard shower components including shower arms, shower heads, shower bases, and hoses. Suitable for use in homes, bathrooms, kitchens, RVs, and similar applications. Durable Material: Constructed from solid heavy-duty brass, this shower head extension offers superior performance with high resistance to heat, corrosion, and pressure. More durable and robust compared to standard brass or plastic tubing. Provides a long-lasting, leak-free shower adapter solution. Reliable and Rust-Proof: Designed as a single-piece construction to minimize leaks and damage. Resists rust and corrosion, ensuring reliable performance with minimal maintenance required. Easy to Use: Features a rotating collar that can be easily tightened by hand, even with wet or slippery hands. No wrench or additional tools required for installation.