{"product_id":"parker-394p-6-6-single-end-shutoff-coupler-3-8-inch-brass","title":"Parker 394P-6-6 Single End Shutoff Coupler 3\/8 Inch Brass","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe PARKER 394P-6-6 is a brass compression-style single end shutoff coupler designed for tube-to-tube connections in fluid and pneumatic line applications. This fitting allows one end of a line to be disconnected while automatically shutting off flow, preventing spillage or pressure loss during service. Constructed from brass, it handles working pressures up to 150 psi and temperatures ranging from 0 degrees F to 150 degrees F. It is sized for 3\/8-inch outside diameter tubing and uses a compression-style end connection on both ports. Plumbers, HVAC technicians, and industrial piping professionals install this coupler where quick disconnection and automatic shutoff are required without full system depressurization.\u003c\/p\u003e\u003cp\u003eThis coupler is suited for residential and light commercial fluid handling systems where tube-to-tube connections must be serviceable without draining entire lines. Typical applications include refrigeration lines, compressed air distribution, hydraulic circuits, and water supply runs where maintenance access is needed at discrete points. The single end shutoff design means flow is blocked on the supply side when the coupler is separated, keeping the upstream line pressurized and reducing fluid loss during component swaps or line repairs.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSingle end shutoff design blocks upstream flow automatically on disconnect\u003c\/li\u003e\n\u003cli\u003eBrass construction provides corrosion resistance for water, air, and refrigerant-compatible service\u003c\/li\u003e\n\u003cli\u003eCompression tube fittings on both ends accept 3\/8-inch outside diameter tubing without welding or soldering\u003c\/li\u003e\n\u003cli\u003eRated to 150 psi maximum working pressure\u003c\/li\u003e\n\u003cli\u003eOperates across a temperature range of 0 degrees F to 150 degrees F\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style compression coupler for tube-to-tube connections using 3\/8-inch outside diameter tubing in fluid and pneumatic systems rated within the specified pressure and temperature limits.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA licensed plumber or qualified HVAC technician should install this fitting in compliance with applicable codes, including IPC and relevant local piping standards. Depressurize and isolate the line segment before disconnecting or installing the coupler. Use appropriate tube cutting and deburring tools to ensure a clean, square tube end for a leak-free compression seal. Do not overtighten compression fittings; follow standard compression fitting assembly practice and inspect for leaks after restoring system pressure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Type\u003c\/strong\u003e: Single End Shutoff Coupler\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Connections\u003c\/strong\u003e: Tube x Tube (Compression)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube Outside Diameter\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Pressure\u003c\/strong\u003e: 150 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Temperature\u003c\/strong\u003e: 150 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Temperature\u003c\/strong\u003e: 0 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27121700\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: PARKER\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 394P-6-6\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PARKER","offers":[{"title":"Default Title","offer_id":51542102638898,"sku":"394P-6-6","price":84.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1164a86a48e3c5b77db402d2e6ef7af0.jpg?v=1785892106","url":"https:\/\/voomisupply.com\/products\/parker-394p-6-6-single-end-shutoff-coupler-3-8-inch-brass","provider":"Voomi Supply","version":"1.0","type":"link"}