Long-stream apparatuses are made of polyester-fibreglass laminate, perforated aluminium metal or stainless steel sheet and PVC pipes.
One complete apparatus consists of four boxes for spawn incubation, two gates with perforated net, one from the inflow side to eliminate air bubbles in the inflowing water, the other from the outflow side, and one basin which later is used for keeping the fry.
The basins inside are smooth and their inside surface is easy to clean. The boxes are well fit to the inner part of the basin, which justifies the right water flowing direction (as shown in the diagram) and correct hatching process.
The basins can be put one into another, which allows easy and convenient transportation or storing when they are not used.
| nr kat. | SYMBOL | Lenght | Lenght max | Width | Height |
| L [m] | L max[m] | A[m] | H[m] | ||
| 3.1.1 | SDK Hg2b | 1,38 | 1,48 | 0,605 | 0,18 |
| 3.1.2 | SDK Hg3b | 1,83 | 1,94 | 0,605 | 0,18 |
| 3.1.3 | SDK Hg4b | 2,26 | 2,33 | 0,605 | 0,18 |
| 3.1.4 | SDK Hg7b | 3,92 | 4 | 0,605 | 0,18 |
