1pc PM straight bulkhead union connector (PM 12mm) — push-in pneumatic fitting for air hoses with an outside diameter of 4–12 mm. Key benefits Fast, tool-free connections: push-in quick-connect design speeds installation and servicing. Secure, leak-resistant joint: straight bulkhead union provides a tight seal for efficient air transfer. Panel-ready mounting: bulkhead design lets you route and connect hoses through panels or enclosures. Versatile compatibility: designed for pneumatic and plumbing air lines within the 4–12 mm OD range. Reliable performance: compact, practical component for repeatable connections in pneumatic systems. What it does Joins air hoses in-line through a panel or bulkhead using a straight union configuration. Provides a quick-release push-in connection that simplifies assembly and maintenance of air lines. Important attributes Model: PM 12mm (PM straight bulkhead union connector) Quantity: 1 pc Type: Push-in gas quick connector fitting (pneumatic fitting) Compatibility: Air hoses with OD 4–12 mm Function: Straight bulkhead union for through-panel hose connection, ensuring efficient air transfer and a tight seal Typical use scenarios Workshop compressed-air systems: connect tool lines through a workbench or equipment panel for tidy routing and fast hose changes. Control panels and enclosures: create a clean, secure pass-through for pneumatic lines in automation cabinets or machine panels. Production and assembly lines: simplify maintenance by enabling quick disconnection and reconnection of air supply hoses during changeovers or repairs. Use this PM 12mm straight bulkhead union when you need a dependable, easy-to-install connector for pneumatic hoses routed through panels or enclosures, compatible with 4–12 mm OD air lines.