Viking® VK331, Model M, 4.2K, Standard, Pendent, QR, 1/2" NPT, White, 175 Degree 21271MD/W Fire Sprinkler Head 56-452-1-001 4 m) and up to

4 m) and up to 100 ft

(1) sleeve

Previous part number E31

Item:  Key-Lock Assembly

Viking® VK331, Model M, 4.2K, Standard, Pendent, QR, 1/2" NPT, White, 175 Degree 21271MD/W Fire Sprinkler Head 56-452-1-001 4 m) and up toViking VK331, Model M, 4. 2K, Standard, Pendent, QR, 1 2" NPT, White, 175 Degree 21271MD W Fire Sprinkler Head The Viking Microfast Quick Response Pendent Sprinkler VK331 is a small thermosensitive glass bulb spray sprinkler available with various finishes and temperature ratings to meet design requirements. The special Polyester and Electroless Nickel PTFE (ENT) coatings can be used in decorative applications where colors are desired. In addition,