For dual flush actuation or start & stop actuation. For pneumatic drop valve AV1. For vertical installation. Features GROHE Water Saving technology for less water and perfect flow, and a GROHE Long-Life finish. Compatible with Rapid SL 1.13 m with GD 2 cistern. For use with Rapid SLX, shaft 66 791 000 must be ordered separately. Scratch resistant and easy to clean thanks to the GROHE StarLight chrome coating. Manufacturers 5 year warranty.