{"product_id":"l-series-quick-disconnect-hose-fitting-valved-coupler-5-16-3-8","title":"L-Series Quick Disconnect Hose Fitting Valved Coupler 5\/16 3\/8","description":"\n\u003ch2\u003eL-Series Valved Quick Disconnect Hose Coupler\u003c\/h2\u003e\n\u003cp\u003eKeep your fluid systems under control with this precision-engineered \u003cstrong\u003eL-Series Quick Disconnect Fitting\u003c\/strong\u003e. Designed for fast, tool-free connections and disconnections, this hose barb coupler features a built-in shut-off valve that automatically stops flow when disconnected — making it ideal for fuel lines, cooling systems, irrigation, and fluid transfer applications.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuick Shut-Off Valve:\u003c\/strong\u003e Built-in valved design automatically seals flow upon disconnection — no spills, no mess.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eL-Series Standard:\u003c\/strong\u003e Compatible with standard L-series quick coupler systems for broad interchangeability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Alloy Construction:\u003c\/strong\u003e Sturdy alloy body with a plastic shell ensures long-lasting performance under pressure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEPDM Seal:\u003c\/strong\u003e High-quality EPDM rubber seal provides a reliable, leak-free connection across a wide temperature range.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSUS316 Stainless Steel Spring:\u003c\/strong\u003e Corrosion-resistant valve core spring for consistent, reliable operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlange Connection Type:\u003c\/strong\u003e Secure flange-style connection for a stable, vibration-resistant fit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFits 5\/16\" \u0026amp; 3\/8\" Hose Barb:\u003c\/strong\u003e Versatile sizing to suit a range of hose inner diameters (approx. 3mm nipple).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand New:\u003c\/strong\u003e Supplied individually (1 pc per package) in brand-new condition, ready to install.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eL-Series Quick Coupler \/ Nipple\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eAlloy body, Plastic shell\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSeal Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eEPDM\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSpring Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eSUS316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eConnection Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eFlange\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eHose Inner Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e3mm (approx. 5\/16\" – 3\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eQuantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e1 Piece\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px; border:1px solid #ddd;\"\u003eMade in China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × L-Series Quick Disconnect Hose Joint Coupler\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Tools \u0026amp; Accessories\u003c\/h3\u003e\n\u003cp\u003eLooking for more workshop essentials? Check out our \u003ca href=\"\/products\/10-in-1-multi-functional-bone-wrench-hex-socket-spanner-portable-repair-hand-tool-for-bicycle-motorcycle-furniture-assembly\"\u003e10-in-1 Multi-Functional Bone Wrench Hex Socket Spanner\u003c\/a\u003e and the \u003ca href=\"\/products\/16-in-1-multi-function-bike-repair-tool-portable-folding-hex-wrench-set-for-bicycle-motorcycle-furniture-maintenance-hand-tools\"\u003e16-in-1 Multi-Function Bike Repair Tool Portable Folding Hex Wrench Set\u003c\/a\u003e for all your maintenance needs.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Monitor color calibration and lighting conditions may cause slight colour variations from product images. Please allow ±1–2mm measurement tolerance. 1cm = 0.39\".\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What hose sizes is this quick disconnect fitting compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This L-Series quick disconnect coupler is designed to fit hose barb sizes of 5\/16\" and 3\/8\", with a nipple hose inner diameter of approximately 3mm. Always verify your hose inner diameter before purchasing to ensure a secure, leak-free fit.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the valve automatically stop flow when disconnected?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The built-in shut-off valve is a key feature of this L-Series coupling. When the connector is disconnected, the valve automatically closes to stop fluid flow, preventing spills and minimising fluid loss during line changes or maintenance.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What materials are used in the seal and spring?\u003c\/h4\u003e\n\u003cp\u003eA: The coupler uses a high-quality EPDM (Ethylene Propylene Diene Monomer) rubber seal for excellent temperature and chemical resistance, and a SUS316 stainless steel valve core spring for superior corrosion resistance and long-lasting durability.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this fitting suitable for fuel, water, or coolant lines?\u003c\/h4\u003e\n\u003cp\u003eA: This fitting is designed for general fluid transfer applications. The EPDM seal offers compatibility with water, coolant, and many common fluids. For fuel or chemical applications, always verify fluid compatibility with EPDM and alloy materials before installation.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What hose sizes is this quick disconnect fitting compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This L-Series quick disconnect coupler is designed to fit hose barb sizes of 5\/16\\\" and 3\/8\\\", with a nipple hose inner diameter of approximately 3mm. Always verify your hose inner diameter before purchasing to ensure a secure, leak-free fit.\"}}, {\"@type\": \"Question\", \"name\": \"Does the valve automatically stop flow when disconnected?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The built-in shut-off valve is a key feature of this L-Series coupling. 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