{"product_id":"chemglass-vacuum-adapter-7-10-outer-joint-20-400-gpi-thread-with-ptfe-stopcock","title":"Chemglass Vacuum Adapter 7\/10 Outer Joint 20-400 GPI Thread with PTFE Stopcock","description":"\u003cstrong\u003ePrecision Flow Control for Microscale Vacuum Applications\u003c\/strong\u003e\n\n\u003cp\u003eUpgrade your manifold or air-sensitive reaction setups with the \u003cstrong\u003eChemglass CG-1049-J-30 Vacuum Adapter\u003c\/strong\u003e. Expertly engineered for microscale laboratory applications, this specialized adapter seamlessly bridges standard taper glassware with threaded components while providing precise isolation and flow control.\u003c\/p\u003e\n\n\u003cp\u003eThis adapter features a 7\/10 standard taper outer joint on one end and a 20-400 GPI threaded connection on the other. At the center of the adapter is a high-quality PTFE (Teflon) stopcock, which allows for the smooth, grease-free regulation of vacuum or inert gas flow. Manufactured from heavy-wall borosilicate glass, it ensures the chemical inertness and durability required for rigorous daily use in organic and Schlenk line chemistry.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrease-Free PTFE Stopcock:\u003c\/strong\u003e The chemically inert Teflon stopcock plug will not freeze and requires no vacuum grease, preventing sample contamination while offering fine control over gas or vacuum flow.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual-Connection Versatility:\u003c\/strong\u003e Seamlessly connects microscale 7\/10 inner joint glassware to 20-400 GPI threaded vials, tubes, or caps.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAir-Sensitive Chemistry Ready:\u003c\/strong\u003e Ideal for isolating sensitive microscale reactions, degassing solvents, or connecting specific apparatus to a Schlenk line.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Borosilicate Construction:\u003c\/strong\u003e Crafted from high-quality, low-expansion borosilicate glass to withstand harsh chemical environments and vacuum pressures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eDetails\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eChemglass Life Sciences\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eManufacturer Part No.\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eCG-1049-J-30\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eAdapter Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eVacuum \/ Gas Flow Adapter\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eJoint Size\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e7\/10 Standard Taper Outer Joint\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eThread Size\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e20-400 GPI Thread\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStopcock Material\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003ePTFE (Teflon)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eGlass Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eBorosilicate Glass\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eQuantity Included\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1 Adapter\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003cstrong\u003eUsed, very clean. Looks like new.\u003c\/strong\u003e","brand":"Chemglass","offers":[{"title":"Default Title","offer_id":48810280616188,"sku":"10451","price":71.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8463\/5132\/files\/chemglass-vacuum-adapter-710-outer-joint-20-400-gpi-thread-with-ptfe-stopcock-jointed-glassware-chemglass-394479.jpg?v=1773097447","url":"https:\/\/lifesciencestrading.com\/zh\/products\/chemglass-vacuum-adapter-7-10-outer-joint-20-400-gpi-thread-with-ptfe-stopcock","provider":"Life Sciences Trading","version":"1.0","type":"link"}