| Model | Mark | Flow RateRatio | Model | Mark | Flow RateRatio |
| PSS-1 | PSS 1 | 4 | PST-1 | PST 1 | 4 |
| PSS-2 | PSS 2 | 8 | PST-2 | PST 2 | 8 |
| PSS-3 | PSS 3 | 16 | PST-3 | PST 3 | 16 |
| PSS-4 | PSS 4 | 32 | PST-4 | PST 4 | 32 |
| PSS-5 | PSS 5 | 64 | PST-5 | PST 5 | 64 |
| Model | Mark | Flow RateRatio | Model | Mark | Flow RateRatio |
| PSS-1 | PSS 1 | 4 | PST-1 | PST 1 | 4 |
| PSS-2 | PSS 2 | 8 | PST-2 | PST 2 | 8 |
| PSS-3 | PSS 3 | 16 | PST-3 | PST 3 | 16 |
| PSS-4 | PSS 4 | 32 | PST-4 | PST 4 | 32 |
| PSS-5 | PSS 5 | 64 | PST-5 | PST 5 | 64 |