Efficient 68/155 Fire Sprinkler Heads: Crafted from durable brass, these sprinkler heads feature a thermal red glass bulb that responds swiftly, ensuring rapid water dispersion in the event of a fire, enhancing safety and reliability in various indoor environments. Optimal Water Distribution: Designed as upright type sprinklers, they create a parabolic water spray pattern. This design ensures 80-100% of water is directed downwards, maximizing ground coverage while a portion ascends to cool the ceiling, providing comprehensive fire suppression. Robust Performance Specifications: Each sprinkler head operates at a working pressure of 1.2Mpa and weighs 48g. The package includes 5 pieces, offering a practical solution for both replacement and initial installation in fire safety systems. Standard Compatibility: Featuring a standard 1/2 NPT thread, these fire sprinkler heads ensure a hassle-free installation, making them compatible with most existing fire sprinkler systems, thereby facilitating easy maintenance and upgrades. Versatile Installation Applications: Primarily installed indoors in homes, factories, schools, and offices, these sprinklers are suitable for commercial and residential fire protection systems. Color: Silver Material: Metal Package Contents: 5 x Fire Sprinkler Heads Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.