| 451 | Viking VK537 - EC/QREC Ordinary Hazard ELO Fusible Element Pendent Sprinkler (K11.2) | |
| 452 | Viking VK535 - EC/QREC Ordinary Hazard ELO Fusible Element Upright Sprinklers (K11.2) | |
| 453 | Viking VK603 - QREC Fusible Element Pendent Sprinkler (K 8.0) | |
| 454 | Viking VK613 - Microfast® HP EC/QREC Fusible Element Horizontal Sidewall Sprinkler (K5.6) | |
| 455 | Viking VK609 - Microfast® EC/QREC Fusible Element Horizontal SidewallSprinkler (K5.6) | |
| 456 | Viking VK611 - Microfast® HP EC/QREC Fusible Element Pendent Sprinkler (K5.6) | |
| 457 | Viking VK601 - QREC Fusible Element Pendent Sprinkler (K5.6) | |
| 458 | Viking VK680 - QREC Concealed Horizontal Sidewall Sprinkler (K8.0) | |
| 459 | Viking VK638-D - QREC Concealed Horizontal Sidewall Sprinkler (K8.0) | |
| 460 | Viking VK638 - "Corridor Sprinkler" - QREC Horizontal Sidewall Sprinkler (K8.0) | |
| 461 | Viking VK630-D - QREC Concealed Horizontal Sidewall Sprinkler (K8.0) | |
| 462 | Viking VK630 - QREC Horizontal Sidewall Sprinkler (K8.0) | |
| 463 | Viking VK612 - Microfast® HP EC/QREC Horizontal Sidewall Sprinklers (K5.6) | |
| 464 | Viking VK605 - Microfast® EC/QREC Horizontal Sidewall Sprinkler (K5.6) | |
| 465 | Viking VK572 - EC/QREC Ordinary Hazard Pendent Spk (K14.0) | |
| 466 | Viking VK570 - EC/QREC Ordinary Hazard Upright Spk (K14.0) | |
| 467 | Viking VK538 - Mirage EC/QREC OH-ELO Concealed Pendent Sprinkler (K11.2) | |
| 468 | Viking VK636 - Mirage QREC Light Hazard ELO Concealed Pendent Sprinkler (K11.2) | |
| 469 | Viking VK608 - EC/QREC Light Hazard Extra-Large Orifice Pendent Sprinkler (K11.2) | |
| 470 | Viking VK534 - EC/QREC Pendent Sprinkler (K11.2) | |
| 471 | Viking VK532 - EC/QREC Upright Sprinkler (K11.2) | |
| 472 | Viking VK602 - Microfast® EC/QREC Pendent Sprinkler (K8.0) | |
| 473 | Viking VK632, VK634 - Mirage® QREC Concealed Pendent Sprinklers (5.6 and 8.0 K Factor) | |
| 474 | Viking VK610 - Microfast® SR/QREC Pendent HP Sprinkler (K5.6) | |
| 475 | Viking VK600 - Microfast® EC/QREC Pendent Sprinkler (K5.6) | |
| 476 | Viking VK353 - Microfast® Quick Response Fusible Element Pendent Sprinkler (K8.0) | |
| 477 | Viking VK355 - Microfast® Quick Response Fusible Element Conventional Sprinkler (K8.0) | |
| 478 | Viking VK351 - Microfast® Quick Response Fusible Element Upright Sprinkler (K8.0) | |
| 479 | Viking VK309 - Microfast® Quick Response Fusible Element Vertical Sidewall Sprinkler (K5.6) | |
| 480 | Viking VK320 - Microfast® HP Quick Response Fusible Element Horizontal Sidewall High Pressure Sprinkler (K5.6) | |