{"product_id":"constant-pressure-dropping-funnel-ptfe-stopcock","title":"Constant-Pressure Dropping Funnel, PTFE Stopcock","description":"\u003cp\u003eBorosilicate glass constant-pressure (pressure-equalizing) dropping funnels with a side pressure-equalization tube, for controlled addition of liquids to reaction vessels.\u003c\/p\u003e\u003ch3\u003eModel Comparison\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003cth\u003eStopcock\u003c\/th\u003e\n\u003cth\u003eGraduation\u003c\/th\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 ml\u003c\/td\u003e\n\u003ctd\u003e25 ml\u003c\/td\u003e\n\u003ctd\u003ePTFE stopcock\u003c\/td\u003e\n\u003ctd\u003ePlain (no graduation)\u003c\/td\u003e\n\u003ctd\u003eBorosilicate glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 ml - with Graduation\u003c\/td\u003e\n\u003ctd\u003e25 ml\u003c\/td\u003e\n\u003ctd\u003ePTFE stopcock\u003c\/td\u003e\n\u003ctd\u003eWith graduation\u003c\/td\u003e\n\u003ctd\u003eBorosilicate glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50 ml\u003c\/td\u003e\n\u003ctd\u003e50 ml\u003c\/td\u003e\n\u003ctd\u003ePTFE stopcock\u003c\/td\u003e\n\u003ctd\u003ePlain (no graduation)\u003c\/td\u003e\n\u003ctd\u003eBorosilicate glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50 ml - with Graduation\u003c\/td\u003e\n\u003ctd\u003e50 ml\u003c\/td\u003e\n\u003ctd\u003ePTFE stopcock\u003c\/td\u003e\n\u003ctd\u003eWith graduation\u003c\/td\u003e\n\u003ctd\u003eBorosilicate glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 ml\u003c\/td\u003e\n\u003ctd\u003e100 ml\u003c\/td\u003e\n\u003ctd\u003ePTFE stopcock\u003c\/td\u003e\n\u003ctd\u003ePlain (no graduation)\u003c\/td\u003e\n\u003ctd\u003eBorosilicate glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 ml - with Graduation\u003c\/td\u003e\n\u003ctd\u003e100 ml\u003c\/td\u003e\n\u003ctd\u003ePTFE stopcock\u003c\/td\u003e\n\u003ctd\u003eWith graduation\u003c\/td\u003e\n\u003ctd\u003eBorosilicate glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e250 ml\u003c\/td\u003e\n\u003ctd\u003e250 ml\u003c\/td\u003e\n\u003ctd\u003ePTFE stopcock\u003c\/td\u003e\n\u003ctd\u003ePlain (no graduation)\u003c\/td\u003e\n\u003ctd\u003eBorosilicate glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e250 ml - with Graduation\u003c\/td\u003e\n\u003ctd\u003e250 ml\u003c\/td\u003e\n\u003ctd\u003ePTFE stopcock\u003c\/td\u003e\n\u003ctd\u003eWith graduation\u003c\/td\u003e\n\u003ctd\u003eBorosilicate glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 ml\u003c\/td\u003e\n\u003ctd\u003e500 ml\u003c\/td\u003e\n\u003ctd\u003ePTFE stopcock\u003c\/td\u003e\n\u003ctd\u003ePlain (no graduation)\u003c\/td\u003e\n\u003ctd\u003eBorosilicate glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 ml - with Graduation\u003c\/td\u003e\n\u003ctd\u003e500 ml\u003c\/td\u003e\n\u003ctd\u003ePTFE stopcock\u003c\/td\u003e\n\u003ctd\u003eWith graduation\u003c\/td\u003e\n\u003ctd\u003eBorosilicate glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1000 ml\u003c\/td\u003e\n\u003ctd\u003e1000 ml\u003c\/td\u003e\n\u003ctd\u003ePTFE stopcock\u003c\/td\u003e\n\u003ctd\u003ePlain (no graduation)\u003c\/td\u003e\n\u003ctd\u003eBorosilicate glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1000 ml - 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