Ensure your espresso and coffee equipment get the best protection and your drinks get the best tasting water with the Bestmax Smart 35. Engineered for high performance kitchens, cafés, and specialty coffee setups, this filter offers advanced water treatment with ease of use.
 
Key Features & Benefits
Comprehensive 5-Stage Filtration
Removes suspended particles, chlorine, organic compounds, and reduces carbonate hardness to protect from limescale build-up.
High Efficiency Technology (HET)
Designed to deliver optimal filtration with maximum capacity, making it economical even in demanding environments. 
Bypass & Blend Control
Offers partial flow settings so you can adjust how much untreated water is combined with filtered water, helping you dial in the right mineral balance. 
Multi-Orientation Installation
Can be installed vertically or horizontally to suit your space constraints. 
Optimal Capacity
At a hardness of 10 °dH, this cartridge can filter approximately 7,800 litres of water. 
Operating Range
Temperature: 4 °C to 30 °C
Pressure: 2 to 8 bar 
Reduced Corrosion & Heavy Metal Control
Helps lower concentrations of copper, zinc, and other metals while maintaining stable pH levels to protect machine internals.
 
BWT Besthead FLEX — Smart, Flexible Filter Head
The Besthead FLEX is the perfect companion to the Bestmax Smart series. It’s not just a mounting head — it offers smart features, installation flexibility, and built-in safety to make your filtration system more reliable and serviceable.
 
Key Features & Benefits
FLEX Connection Technology
The head’s connection fittings can rotate in 30° increments, making it easier to route hoses even in tight spaces. 
Tool-Free Cartridge Replacement
Use the clip mechanism to swap cartridges without tools.
Integrated Flush Valve / Venting
Makes purging air or initial resin flush easier and safer. 
Built-in Backflow Protection
Two DVGW-certified check valves prevent water from flowing backward into your mains or filter, reducing the risk of contamination or leaks. 
Bypass / Blend Control
Offers a simple bypass adjustment with a locking mechanism to ensure settings stay put. 
Flexible Installation Options
Compatible with a wide range of BWT filter cartridges. Multiple fittings and mounting styles help adapt it into existing plumbing setups. 
Food-Safe & Pressure-Rated
All parts are made from food-safe materials and built to handle typical machine pressures. 
 
Why Use Bestmax Smart 35 + Besthead FLEX Together?
When paired, these components form a powerful water filtration solution:
 
The Bestmax Smart 35 does the heavy work of filtering, de-scaling protection, and removing unwanted compounds.
The Besthead FLEX ensures you can mount and maintain the filter setup easily, even in challenging environments, while adding safety (backflow prevention) and convenience (flush valve, tool-free replacement).
The combined system helps protect your espresso machines from scale and corrosion, extend their lifespan, and improve the clarity and consistency of your brewed beverages.