Upright sprinkler itself is a device installed in a fire extinguisher or fire installation that is permanently installed inside a building or building that can function as a water sprayer to extinguish fires automatically by spouting water at the location where a fire usually occurs in a car park. Specifications: Brand: Viking Type: Upright Size: 1/2 "(15mm) Hole size: 1/2" (15mm) K-Factor: 8.0 (115) Area Of FT Coverage: 20 'x 20' M: 6.2 x 6.2