| Similarity | Rank | |
|---|---|---|
| aquaclear | 0.909 | 94537 |
| fluval | 0.881 | 39608 |
| undergravel | 0.874 | 19259 |
| heaterstat | 0.873 | 47719 |
| reverse-flow | 0.872 | 72940 |
| eheim | 0.867 | 68668 |
| algarde | 0.858 | 60722 |
| feed-and-expansion | 0.853 | 47951 |
| draincock | 0.842 | 60890 |
| multi-point | 0.837 | 64459 |
| thermostatic | 0.834 | 51536 |
| gravity-fed | 0.833 | 64437 |
| airpump | 0.828 | 69353 |
| aeration | 0.828 | 27937 |
| pre-filter | 0.824 | 46642 |
| flocor | 0.823 | 68145 |
| condenser | 0.821 | 41872 |
| fan-assisted | 0.821 | 93082 |
| non-return | 0.814 | 53274 |
| pipework | 0.814 | 23535 |
| autoclave | 0.811 | 58651 |
| siliconed | 0.810 | 72934 |
| grolux | 0.808 | 83322 |
| de-ice | 0.806 | 63837 |
| reducer | 0.805 | 57188 |