Grohe Kitchen and Bathroom Faucet Installation
Grohe faucets use standard US plumbing connections despite their German engineering -- 3/8" compression supply tubes, standard US thread aerators, and standard hole dimensions. All Grohe faucets include English installation instructions. One Grohe-specific installation note: Grohe uses a proprietary mounting nut with a hexagonal cross-section (rather than the round plastic mounting nut used by Moen and Delta). Use the included Grohe mounting wrench -- a standard basin wrench will not engage the Grohe nut properly. Grohe US customer support: 1-877-476-4374 (Grohe America, Atlanta). Most Grohe dealer installations can be arranged through the Grohe US dealer locator at grohe.com/us-en.