Grohe Flushing Cistern GD2

The GROHE GD2 Concealed Cistern (Model 38987000) is a premium in-wall flushing system designed for modern bathrooms. With an adjustable capacity ranging from 6 to 9 liters (factory set at 6L and 3L), it offers flexibility and water efficiency. The pneumatic discharge valve provides three flushing modes: dual flush, start/stop, and single flush, catering to various user preferences. 

Installation is straightforward, thanks to the ½” water supply connection with an integrated angle valve and push-fit flexible hose union. The cistern supports water supply from multiple directions—left, right, back, or top—enhancing its adaptability.

Its low-noise operation complies with German Noise Specification Group I, ensuring a quiet bathroom environment. Additionally, the unit is insulated against condensation, preventing moisture buildup.

Designed for both vertical and horizontal use, it comes with fixing brackets and an inspection shaft for easy maintenance. 

Please note that the flush plate is not included and must be purchased separately.

• 6 - 9 l adjustable
• adjustment ex factory 6 l and 3 l
• pneumatic discharge valve offering 3 modes of operation: dual flush or start/stop or single flush
• water supply from left/right/back or top
• low noise (group I acc. to German Noise Specification)
• insulated against condensation
• ½" water supply connection including integrated angle valve and push fit flexible hose union
• no tools required for the installation of the inspection shaft incl. protection during construction phase
• for vertical or horizontal use
• flush pipe insulated against condensation
• fixing brackets
• without wall plate/actuation
• GROHE Water Saving - Less water, perfect flow
• for mounting of small flush plates please order revision shaft 40 911 000 (sold separately)