Grohe 40430001 Blue 4 3/8 Inch Medium BWT Filter

The Blue best water technology replacement Filter cartridge is suitable for Blue and red kitchen water systems. Blue filter system is the time you'll save when you no longer need to descale your kettle, coffee maker or iron as frequently as before.

• Capacity: 396.25 Gallons (1500 L) at 15^o dKH
• 5 phases filter
• The filter system may only be operated with cold water of foodstuff grade