| 100mm diameter connector | | Connects BD units by push fit and click |
| 50mm diameter connector | | Connects BD units by push fit and click |
| 100mm diameter end cap | | Caps off BD units |
| 50mm diameter end cap | | Caps off BD units |
| 100m diameter non perforated connector pipe | | For linking BD units |
| 50m diameter non perforated connector pipe | | For linking BD units |
| T- connector/splitter 90° | | For connection BD blocks to filter units |
| T- connector/splitter 45° | | For connection BD blocks to filter units |
| Gravel plate weight divider | | Divides weight over blocks, gravel or pebble fill |
