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【Overpressure Protection】 Safety relief valve auto-activates at 50-55 PSI (below the 60 PSI gauge limit) to prevent gauge damage and internal spring fatigue from sustained high pressure. 【Quick-Connect Design for Easy Operation】 Equipped with 5/16 quick-disconnect barb fittings (compatible with 5/16 ID gas lines). The threaded connection enables fast and tool-free hose attachment/detachment. 【Heavy-Duty Engineering】 Constructed with forged brass body and stainless steel components, featuring sintered brass inlet filter. Includes silicone tank washer + spare washer for long-term airtight performance. 【Precision Pressure Control】 Dual-gauge system monitors both cylinder pressure (0-3000 PSI) and regulated output pressure (0-60 PSI). The adjustment knob delivers precise gas flow control for various brewing applications. 【Anti-Tamper Locking Mechanism】 The practical locking ring behind adjustment knob securely maintains your preset pressure, preventing accidental changes during operation. 【Homebrew Essential with Warranty】 CGA-320 compatible design perfect for craft beverage makers. Backed by MRbrew's 1-year hassle-free warranty for guaranteed performance. Size One Output Barb - Mildly Carbonated Brand Name MRbrew Unit Count 1.0 Count Valve Type Diaphragm Valve or Piston Valve Thread Size 1/4 inch Manufacturer MRbrew Model Number 5823773549 Material Type Brass Connector Type Barb Exterior Finish Brass Number of Ports 2 Maximum Pressure 60 Pound per Square Inch Specification Met ANSI B16.11, CE, ISO 9001, MSS SP 80 Inlet Connection Size 0.25 Inches Inlet Connection Type Barb Outlet Connection Size 0.25 Inches Outlet Connection Type Barb