![Photo Hutterer & Lechner Extension with bitumen membrane, 180mm/d 145mm [Code number: HL 350.1H]](/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBMjl2QWc9PSIsImV4cCI6bnVsbCwicHVyIjoiYmxvYl9pZCJ9fQ==--3c5f47e1d5c2b0630257e1457a1076e6a1df2d17/HL_350.1H-photo.jpg?locale=en)
Extension HL 350.1H is designed for increasing length of the HL drains. Height is 225 mm, and diameter is 145 mm. It has bitumen membrane d 500 mm.
| Diameter | Material | Weight |
|---|---|---|
| DN, mm | gr | |
| 145 | polypropylene bitumen membrane |
1550 |
| Height | Width | Depth | Weight | Volume |
|---|---|---|---|---|
| mm | mm | mm | kg | m3 |
| 180 | 385 | 385 | 2,03 | 0,0266805 |
Download data sheet: 
Extension HL 350.1H
![Draft Hutterer & Lechner Extension with bitumen membrane, 180mm/d 145mm [Code number: HL 350.1H]](/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBZ0s4IiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--98c75d676f1a51823d2fb069e46ce75b4ce945fb/hl_350.1h-draft.jpg?locale=en)