KOHLER 1/2 in. Metal 90-Degree NPT Wall-Mount Supply Elbow with Check Valve and Hand Shower Holder in Polished ChromeKOHLER Polished Chrome Wall Mount Supply Elbow Elevate your shower experience with the KOHLER Polished Chrome Wall Mount Supply Elbow. Featuring a sleek design, this sturdy metal elbow integrates perfectly with hand showers, offering backflow protection with its check valve. Its durable chrome finish resists corrosion, ensuring enduring performance in your shower system. Key Features: Durability: Crafted from solid metal for long lasting reliability.