Grohe 31312DC0 GROHE Blue Pure Dual function Kitchen Faucet GROHE SilkMove: for a lifetime of smooth operation. GROHE SilkMove: for a lifetime of smooth operation. 180 Swivel spout for easy sink access Includes a 158 gallon 4-stage filter with adjustable filter head and GROHE Blue carafe. Separate rotary handle for filtered drinking water with two internal water ways for filtered and non-filtered water to eliminate cross-contamination.