This air compressor safety valve is designed for those who reliability and ease of use. The 1/4 inch British thread allows for straightforward installation, while the robust brass construction ensures performance. The red cap not only provides a clear safety indicator but also adds a touch of visibility, making it easy to monitor and maintain. Features -Color:Red -Material:Brass, plastic -Size:5.50X1.70X1.70cm/2.16X0.67X0.67in -Robust construction: made from brass, ensuring reliable stability and durability, preventing compressor over pressure -Quiet performance: design enables silent operation, for work environments, enhancing comfort -Automatic relief: 0.8mpa pressure with automatic exhaust relief, ensuring equipment safety and extending compressor lifespan -Distinct red cap: easily identifiable red cap for quick recognition and maintenance, suitable for various industrial and home repair scenarios -Standard thread compatibility: 1/4 inch standard thread interface offers strong compatibility, easy installation, and replacement, improving maintenance efficiency Package list: 4 x air compressor safety valve