The H-Line Single Hook was designed by Watermark in collaboration with renowned interior designer Mark Zeff, celebrating the historic High-Line in New York City. The H-Line collection, featuring a bold silhouette and clean curves, combines the best of Watermark's custom capabilities infused with Mark Zeffâs global aesthetic. Designed by Watermark, a plumbing mainstay of Brooklyn, NY for over 30 years, this collection of timeless solid brass faucet and shower sets are assembled and finished in Watermark's Brooklyn factory.