Product Specifications-QRL & QRS Series:
| Part No. | D | Part No. | D |
| QRL-06 | 6 | QRS-06 | 6 |
| QRL-08 | 8 | QRS-08 | 8 |
| QRL-10 | 10 | QRS-10 | 10 |
| QRL-12 | 12 | QRS-12 | 12 |
| QRL-15 | 15 | QRS-14 | 14 |
| QRL-18 | 18 | QRS-16 | 16 |
| QRL-22 | 22 | QRS-20 | 20 |
| QRL-28 | 28 | QRS-25 | 25 |
| QRL-35 | 35 | QRS-30 | 30 |
| QRL-42 | 42 | QRS-38 | 38 |
