The BWT BestHead Flex Filter Head is a versatile filter head for BWT water+more cartridges, with a Flex Insert connection system that adjusts in 30° steps for clean, tool-free installation in tight undersink spaces. Whether your supply lines come from the left, right, or straight ahead, you can route hoses neatly without forcing anything or reaching for a spanner.
Built with everyday use in mind, it includes an automatic water stop so you can swap cartridges without turning off your supply or dealing with leaks and an Easy Vent valve makes purging the system simple once the new cartridge is in. Two built-in backflow prevention valves keep your drinking water supply protected and everything is made from food-grade materials rated to 8 bar.
BWT BestHead Flex Filter Head Features
Flex Insert Interface – Click connections into place at any angle in 30° steps, no tools required - practical when space is tight or supply lines aren't ideally positioned.
Automatic Water Stop – Lets you change cartridges without turning off the water supply or dealing with leaks.
Easy Vent Valve – Makes purging the system quick and simple after a cartridge change.
Dual Backflow Prevention – Two DVGW-certified valves protect your drinking water supply from contamination.
Universal Cartridge Compatibility – Fits all BWT water+more filter cartridges.
This Product Includes
- 1 x BWT BestHead Flex Filter Head
- 2 x 90° Elbow Fittings (FLEX Insert, 3/8" external thread, GFP)
Specifications
| Materials | Food-grade GFP |
| Inlet Pressure | 2–8 bar |
| Water Temperature | 4–30°C |
| Ambient Temperature | 4–40°C |
| Dimensions | (H) 105mm x (W) 130mm |



* Rural and remote areas may attract longer shipping times but we make every effort to ensure we provide the fastest delivery times possible.
* Please note bulky orders to rural, remote & offshore areas in excess of 25kg may attract additional delivery fees.
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