Grohe Flow-On/Off Catridge, Concealed Headpart 1/2"
Flow control cartridge (headpart) with ceramic sealing disks used for concealed shower and bath valves, known for its durable brass construction and ease of installation. 
Key Specifications and Features
Type: Flow control cartridge (headpart).
Function: Controls the on/off function and water flow rate (not temperature).
Material: Constructed from brass with ceramic sealing disks for longevity.
Connection Size: 1/2 inch.
Operation: The 45869000 operates on 180° rotation angle, clockwise to close.
Finish: StarLight chrome (exterior).
Compatibility: Compatible with various Grohe models, including specific versions of the Grohtherm 1000 and 3000 concealed shower mixers.
Pressure Rating: Suitable for high pressure systems, over 1.0 bar.