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Look no further than our Check Valve - 1 Pipe for your pipeline needs! Featuring a crack pressure of 1 psi and maximum working pressure of 400psi, this in-line valve is ideal for industrial or residential applications where smooth operation is essential. The brass construction and stainless steel seal provide durability in harsh environments while the FNPT x FNPT connection ensures a secure fit. Its compact design makes it perfect for spaces with limited space without compromising on performance. Whether you're working with gas, oil or water pipelines, our check valve provides reliable protection against backflow and is guaranteed to exceed your expectations!