Industrial gas valves for high-pressure DOT and UN ISO cylinders from Harrison Valve are designed for 4,500 to 6,000 psi service. The double O-ring brass valves feature heavy gauge forgings and internal parts. Common cylinder inlets including 3/4-inch NGT, 3/4-inch -24OS and 25E for UN ISO are available. 877/598-6657; www.harrisonvalve.com.

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