Viking® VK2021, Model XT1, 8.0K, Standard, Pendent, SR, 3/4" NPT, Nickel PTFE (ENT), 200 Degree 23876JNE Fire Sprinkler Head ZN-QR Inside Diameter - 2 1/4"

Inside Diameter -  2 1/4"

and Water Shield Combinations

They come with pre drilled holes for easy installation

RASCO/Reliable C1 Fire Sprinkler Head Guard

L172874198

Viking® VK2021, Model XT1, 8.0K, Standard, Pendent, SR, 3/4" NPT, Nickel PTFE (ENT), 200 Degree 23876JNE Fire Sprinkler Head ZN-QR Inside Diameter - 2 1/4"Viking VK2021, Model XT1, 8. 0K, Standard, Pendent, SR, 3 4" NPT, Nickel PTFE (ENT), 200 Degree 23876JNE Fire Sprinkler Head The Viking VK2021 Standard Response Pendent Sprinkler 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