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![Photo Hutterer & Lechner Air admittance valve for in-wall installation, including lot cover [Code number: HL 905]](/system/products/photos/000/005/203/original/hl_905-photo.jpg?1461296523)
Air admittance valve HL 905 for in-wall installation is made of ABS. The valve protects sanitary devices against disruption of water trap. You can mount this air admittance valve on a long horizontal pipe, but pipe length must be greater 4 meters. Including lot cover, removable function cartridge and cover.
| Diameter | Material | Capacity | Weight |
|---|---|---|---|
| DN, mm | l/s | gr | |
| 50 75 |
ABS | 383 |
Download data sheet: 
Air admittance valve HL 905
![Draft Hutterer & Lechner Air admittance valve for in-wall installation, including lot cover [Code number: HL 905]](/system/products/drafts/000/005/203/original/hl_905-draft.jpg?1461294438)
![Photo Hutterer & Lechner White cover for HL905 [Code number: HL 905.1]](/system/products/photos/000/010/984/original/hl_905.1-photo.jpg?1461296503)
![Photo Hutterer & Lechner Grey cover for HL905 [Code number: HL 905.4]](/system/products/photos/000/005/206/original/hl_905.4-photo.jpg?1461296524)
![Photo Hutterer & Lechner Black cover for HL905 [Code number: HL 905.3]](/system/products/photos/000/005/205/original/hl_905.3-photo.jpg?1461296524)
![Photo Hutterer & Lechner Chrome cover for HL905 [Code number: HL 905.2]](/system/products/photos/000/005/204/original/hl_905.2-photo.jpg?1461296524)