Grohe Blue S-Size Replacement Filter Cartridge (600L) — 40404001
The Grohe 40404001 is an authentic, original-equipment replacement S-Size water filter cartridge developed in partnership with water technology specialists BWT. Engineered specifically for Grohe Blue Home, Grohe Blue Professional, and Grohe Blue Pure tap systems, it uses advanced 5-stage filtration to purify tap water. It reduces limescale, removes fine particles, neutralises chlorine and unwanted odours, and filters out heavy metals while retaining essential health-supporting minerals.
Identification Guide:
MPN: 40404001 | EAN: 4005176985058 | Brand: GROHE | Product Type: Water Filter Cartridge | Filter Size: S-Size | Rated Capacity: 600 Litres at 20° dKH (or max 12 months)
Key Features
- 5-Stage BWT Filtration: Non-woven pre-filter, activated carbon pre-filter, high-performance ion exchanger, activated carbon secondary filter, and fine particle post-filter.
- Limescale Protection: Softens water to protect internal boiler and cooler components while enhancing the taste of tea, coffee, and drinking water.
- Direct System Compatibility: Fully compatible with Grohe Blue Home, Grohe Blue Professional, and Grohe Blue Pure systems.
- Simple Twist Replacement: Easy bayonet connection allows the old cartridge to be unscrewed and the new one fitted in seconds without shutting off the mains water supply.
- Standard S-Size Profile: 600-litre filtration volume calibrated at 20° carbonate hardness (dKH).
Installation & Compatibility Notes
This filter is designed exclusively for Grohe Blue systems and connects to standard Grohe Blue filter heads (including 64508001 / 40438000). It is not compatible with Grohe Red single-boiler systems (which use filter 40438001 / magnesium+ filters). Remember to reset your tap or cooler unit's filter counter (or calibrate through the Grohe Watersystems App) following replacement.