DIN EN 13078:2004-02 Devices to prevent pollution by backflow of potable water - Air gap with submerged feed incorporating air inlet plus overflow - Family A, type C; German version EN 13078:2003
2004DIN EN 13078:2004-02 Devices to prevent pollution by backflow of potable water - Air gap with submerged feed incorporating air inlet plus overflow - Family A, type C; German version EN 13078:2003
2004DIN EN 13078:2004 Devices to prevent pollution by backflow of potable water - Air gap with submerged feed incorporating air inlet plus overflow - Family A, type C; German version EN 13078:2003