This Pressure Balance Rough-In Valve installs behind the wall to supply your shower set with water. Designed to keep pressure steady and protect you from drastic temperature changes, this is the perfect piece to begin your shower makeover. Signature Hardware 446520 Features: Compatible withBerwyn, Beasley, Boca Raton, Carraway, Edenton, Greyfield, Gunther, Hibiscus, Key West, Lentz, Lexia, Pendleton, Pinecrest, Provincetown, Rigi, St. Martin, Vilamonte pressure balance trims Covered under Signature Hardwares 5 year limited Constructed of brass for reliability 1/2" NPT connection Includes Service Stops