Need a reliable, compact shut-off valve for air, water, or gas lines? These DERNORD mini ball valves are built tough. You get 2 valves in the pack. They're made from SUS316 stainless steel, which offers excellent corrosion resistance, much better than brass for harsh environments. The valve has 1/4\ NPT female threads on one end and 1/4\ NPT male threads on the other, making it an inline valve perfect for connecting two pipes. It features a blow-out proof stem design to prevent leaks and failure. It's a quarter-turn valve – just a quick 90-degree flip of the lever to go from fully open to fully closed. It's rated for temperatures from -30°F to 325°F and is suitable for air, water, oil, and inert gas applications (but not for freezing conditions). These are great for DIY projects, compressed air systems, aquarium plumbing, irrigation, or anywhere you need a small, durable, on/off control point.