| Notation | Tank diameter | Manifold inter space (adjustable) | Tanks | Thread |
| D7narrow | approx. 140mm | approx. 155 mm | 7 liter | M25 x 2 |
| D7 | approx. 140mm | approx. 184 mm | 7 Liter | M25 x 2 |
| D10 / D12 | approx. 171mm | approx. 184 mm | 8, 10 and 12 liter | M25 x 2 |
| D20 / D12wide | approx. 204mm | approx. 217 mm | 15, 18 and 20 liter | M25 x 2 |
| 80cuft (M25 x 2) | approx. 184mm | approx. 202 mm | 80cuft Aluminium | M25 x 2 |
| 80cuft (3/4-14" NPSM) | approx. 184mm | approx. 202 mm | 80cuft Aluminium | 3/4-14" NPSM |
The relevance of the safety instructions always depends on the degree of difficulty of the dive and its requirements. The same applies to the execution of technical work.These safety instructions can therefore not be considered comprehensive.