MULTIPLE GRAVEL DOUBLE SYSTEM
| Code | Size (INCH) | INCH Ø | Capacity |
| VLM0098 | 4” Number of Multiple Gravel Plastic Filter Tanks : 2 | 60 | 60 |
| VLM0099 | 5” Number of Multiple Gravel Plastic Filter Tanks : 3 | 60 | 90 |
| VLM0100 | 6” Number of Multiple Gravel Plastic Filter Tanks : 4 | 60 | 120 |
| VLM0101 | 5” Number of Multiple Gravel Plastic Filter Tanks : 2 | 90 | 100 |
| VLM0102 | 5” Number of Multiple Gravel Plastic Filter Tanks : 3 | 90 | 150 |
| VLM0103 | 6” Number of Multiple Gravel Plastic Filter Tanks : 4 | 90 | 200 |
| VLM0104 | 8” Number of Multiple Gravel Plastic Filter Tanks : 5 | 90 | 250 |
| VLM0105 | 8” Number of Multiple Gravel Plastic Filter Tanks : 6 | 90 | 300 |
| VLM0106 | 10” Number of Multiple Gravel Plastic Filter Tanks : 8 | 90 | 400 |
| VLM0107 | 10” Number of Multiple Gravel Plastic Filter Tanks : 10 | 90 | 500 |