With BWT besthead FLEX, the filter head with the world's most flexible connector technology, installing the filter is really easy, even where space is tight. Its innovative FLEX technology with its configured angle adjustment in 30° increments allows for the best possible orientation of the connector hoses, even where space is at a premium. It saves on space, whilst ensuring maximum safety. Thanks to the direct connection of FLEX insert components to the filter head, there is no need for additional double nipples or compression joints. When installing the product, you can use a wide variety of connectors and prefabricated hoses to connect to the raw water and to the consumer unit. Without exception, they are all equipped with FLEX insert connectors and are inserted directly into the unique interface on the filter head, where they are securely held by a clip that can be released without needing a tool. Non-return valves in the filter head on the feed and outflow prevent water from flowing back into the filter cartridge or into the mains system. Both the BWT besthead FLEX filter head and all components with FLEX insert connectors are manufactured in food-safe materials and can be used worldwide on all drinking water systems.