Product DescriptionThis deep wall extension kit is compatible with Gerber D5602 series 3/4" thermostatic shower trim kits in the Mid-Town, Opulence, Parma, and Sirius collections with 3/4" thermostatic valve (D155000BT). Designed to accommodate an additional 13/16” of finished wall depth, the kit includes an all-metal long stem extension, long sleeve, and sleeve removal tool for durability and fast installation. This extension kit is for use when the distance between the back of the valve body and the front of the finished wall is greater than 4 1/4" from the finished wall surfaceFrom the ManufacturerDanze by Gerber offers timeless design with the trusted product quality and performance of the Gerber family name. Known for style and design, discover the inspiration, value and performance of Danze by Gerber. From faucets to shower systems, toilets to bath accessories, you can depend on both striking design and uncompromising quality. Product Information Product Overview Brand: Gerber Features Warranty: Limited lifetime Description This deep wall extension kit is compatible with Gerber D5602 series 3/4 thermostatic shower trim kits in the Mid-Town Opulence Parma and Sirius collections with 3/4 thermostatic valve.