Fitment:
This shower extension set is compatible with Grohtherm SmartControl and SmartControl Mixer Trims sets for final installation with up to three functions in combination with Rapido SmartBox and replaces for grohe 14048000 universal extension set
Features:
1) To install this extension set let to control your shower or bath flexibly and cleverly
1) To install this extension set let to control your shower or bath flexibly and cleverly
2) Made of high quality materials with durable and sturdy performance, great fitment for your shower control box with with 3 functions
3) Provides a 1-Inch extension between Rough-In and Trim, for 25mm
Package included:
shower extension set 
