![21/30441565 DC BS EN 13077. Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B - European Standards 21/30441565 DC BS EN 13077. Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B - European Standards](https://www.en-standard.eu/imgcache/3/4/pi449-21-30441565-dc-21-30441565-DC-BS-EN-13077-Dev_260_260_327021.jpg)
21/30441565 DC BS EN 13077. Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B - European Standards
21/30441565 DC BS EN 13077. Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B - European Standards
![DS/EN 13077:2018 - Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B DS/EN 13077:2018 - Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B](https://webstore.ansi.org/cover-pages/small/DS/M311636CURES.jpg)