| 511 | Viking VK320 - Microfast® HP Quick Response Fusible Element Horizontal Sidewall High Pressure Sprinkler (K5.6) | |
| 512 | Viking VK307 - Microfast® Quick Response Fusible Element Horizontal Sidewall Sprinkler (K5.6) | |
| 513 | Viking VK318 - Microfast® HP Quick Response Fusible Element Pendent High Pressure Sprinkler (K5.6) | |
| 514 | Viking VK303 - Microfast® Quick Response Fusible Element Pendent Sprinkler (K5.6) | |
| 515 | Viking VK311 - Microfast® Quick Response Conventional Fusible Element Sprinkler (K5.6) | |
| 516 | Viking VK316 - Microfast® HP Quick Response Fusible Element Upright High Pressure Sprinkler (K5.6) | |
| 517 | Viking VK301 - Microfast® Quick Response Fusible Element Upright Sprinkler (K5.6) | |
| 518 | Viking VK332 - Microfast® Quick Response Fusible Element Pendent Sprinkler (K4.2) | |
| 519 | Viking VK328 - Microfast® Quick Response Fusible Element Upright Sprinkler (K4.2) | |
| 520 | Viking VK346 - Microfast® HP Quick Response Fusible Element Horizontal Sidewall High Pressure Sprinkler (K2.8) | |
| 521 | Viking VK334 - Microfast® Quick Response Fusible Element Horizontal Sidewall Sprinkler (K2.8) | |
| 522 | Viking VK343 - Microfast® HP Quick Response Fusible Element Pendent High Pressure Sprinkler (K2.8) | |
| 523 | Viking VK330 - Microfast® Quick Response Fusible Element Pendent Sprinkler (K2.8) | |
| 524 | Viking VK341 - Microfast® HP Quick Response Fusible Element Upright High Pressure Sprinkler (K2.8) | |
| 525 | Viking VK326 - Microfast® Quick Response Fusible Element Upright Sprinkler (K2.8) | |
| 526 | Viking VK338, VK339 - Microfast QR Stainless Steel Sprinklers (K5.6) | |
| 527 | Viking VK360 - Quick Response Horizontal Sidewall Sprinkler (K8.0) | |
| 528 | Viking VK306 - Microfast® Quick Response Vertical Sidewall Sprinkler (K5.6) | |
| 529 | Viking VK319 - Microfast® HP Quick Response Horizontal Sidewall Sprinkler (K5.6) | |
| 530 | Viking VK305 - Microfast® Quick Response Horizontal Sidewall Sprinkler (K5.6) | |
| 531 | Viking VK337 - Microfast® Quick Response Vertical Sidewall Sprinkler (K4.2) | |
| 532 | Viking VK344 - Microfast® HP Quick Response Horizontal Sidewall High Pressure Sprinkler (K2.8) | |
| 533 | Viking VK333 - Microfast® Quick Response Horizontal Sidewall Sprinklers (K2.8) | |
| 534 | Viking VK3311 - Microfast® Quick Response Pendent Sprinkler (K4.2) - VdS Approved (Germany) | |
| 535 | Viking VK478 - Quick Response Flush Pendent Sprinkler (K5.6) | |
| 536 | Viking VK462, VK464 - Mirage® QR Concealed Pendent MRI Sprinklers (NON-FERROUS) | |
| 537 | Viking VK469 - QR ELO Concealed Pendent Sprinkler (K11.2) | |
| 538 | Viking VK464 - Mirage® Quick Response Concealed Pendent Sprinkler (K8.0) | |
| 539 | Viking VK462, VK463 HP - Mirage® Standard/Quick Response Concealed Pendent Sprinkler (K5.6) | |
| 540 | Viking VK4621 - Standard and Quick Response Concealed Pendent Sprinkler (K5.6) | |