- 1" diameter opening
| Pro-Clean Gravel Wash | Gravel Tube Length | Gravel Tube Diameter | Overall length | Recommended for |
| 1" Small Tall | 20 Inch | 1 Inch | 6 Feet | Tall nano tanks |
| 1" Small | 12 Inch | 1 Inch | 6 Feet | Nano tanks up to 30 gallons |
| 1" Mini | 6 Inch | 1 Inch | 6 Feet | Small fish tanks and fish bowls under 10 gallons |
- 2" diameter opening
| Pro-Clean Gravel Wash | Gravel Tube Length | Gravel Tube Diameter | Overall length | Recommended for |
| 2" XL |
24 Inch | 2 Inch | 6 Feet | Tall, large tanks |
| 2" Large | 16 Inch | 2 Inch | 6 Feet | Most tanks 30 gallons and larger |
| 2" Medium |
10 Inch | 2 Inch | 6 Feet | Shallow tanks 30 gallons and larger |