Elegant design: German design and engineering delivers optimal performance for all of your shower needs Built to last: Brass internal components compliment a polymer trim plate for a surface that is resistant to dents, chemical corrosion, and mineral accumulation Compatibilty: This rough-in valve is required for installation of hansgrohe and AXOR showerpipes Pieces included: This product includes the rough and mounting hardware Installation notes: Hansgrohe recommends a licensed plumber install this product