| 511 | Viking VK533 - QR ELO Fusible Element Upright Sprinkler (Storage-Density/Area) (K11.2) | |
| 512 | Viking VK531 - QR ELO Upright Sprinkler (Storage-Density/Area) (K11.2) | |
| 513 | Viking VK530 - ELO Upright Sprinkler (Storage-Density/Area) (K11.2) | |
| 514 | Viking VK617 - Microfast® EC/QREC Light Hazard ELO Fusible Element Pendent Spk (K11.2) | |
| 515 | Viking VK537 - EC/QREC Ordinary Hazard ELO Fusible Element Pendent Sprinkler (K11.2) | |
| 516 | Viking VK535 - EC/QREC Ordinary Hazard ELO Fusible Element Upright Sprinklers (K11.2) | |
| 517 | Viking VK603 - QREC Fusible Element Pendent Sprinkler (K 8.0) | |
| 518 | Viking VK613 - Microfast® HP EC/QREC Fusible Element Horizontal Sidewall Sprinkler (K5.6) | |
| 519 | Viking VK609 - Microfast® EC/QREC Fusible Element Horizontal SidewallSprinkler (K5.6) | |
| 520 | Viking VK611 - Microfast® HP EC/QREC Fusible Element Pendent Sprinkler (K5.6) | |
| 521 | Viking VK601 - QREC Fusible Element Pendent Sprinkler (K5.6) | |
| 522 | Viking VK680 - QREC Concealed Horizontal Sidewall Sprinkler (K8.0) | |
| 523 | Viking VK638-D - QREC Concealed Horizontal Sidewall Sprinkler (K8.0) | |
| 524 | Viking VK638 - "Corridor Sprinkler" - QREC Horizontal Sidewall Sprinkler (K8.0) | |
| 525 | Viking VK630-D - QREC Concealed Horizontal Sidewall Sprinkler (K8.0) | |
| 526 | Viking VK630 - QREC Horizontal Sidewall Sprinkler (K8.0) | |
| 527 | Viking VK612 - Microfast® HP EC/QREC Horizontal Sidewall Sprinklers (K5.6) | |
| 528 | Viking VK605 - Microfast® EC/QREC Horizontal Sidewall Sprinkler (K5.6) | |
| 529 | Viking VK572 - EC/QREC Ordinary Hazard Pendent Spk (K14.0) | |
| 530 | Viking VK570 - EC/QREC Ordinary Hazard Upright Spk (K14.0) | |
| 531 | Viking VK538 - Mirage EC/QREC OH-ELO Concealed Pendent Sprinkler (K11.2) | |
| 532 | Viking VK636 - Mirage QREC Light Hazard ELO Concealed Pendent Sprinkler (K11.2) | |
| 533 | Viking VK608 - EC/QREC Light Hazard Extra-Large Orifice Pendent Sprinkler (K11.2) | |
| 534 | Viking VK534 - EC/QREC Pendent Sprinkler (K11.2) | |
| 535 | Viking VK532 - EC/QREC Upright Sprinkler (K11.2) | |
| 536 | Viking VK602 - Microfast® EC/QREC Pendent Sprinkler (K8.0) | |
| 537 | Viking VK632, VK634 - Mirage® QREC Concealed Pendent Sprinklers (5.6 and 8.0 K Factor) | |
| 538 | Viking VK610 - Microfast® SR/QREC Pendent HP Sprinkler (K5.6) | |
| 539 | Viking VK600 - Microfast® EC/QREC Pendent Sprinkler (K5.6) | |
| 540 | Viking VK353 - Microfast® Quick Response Fusible Element Pendent Sprinkler (K8.0) | |