{"product_id":"graduated-constant-pressure-dropping-funnel-teflon-stopcock-19-22-joint-25ml-60ml-125ml-250ml-copy-copy","title":"Pressure Equalizing Graduated Addition Funnel with PTFE Stopcock 24\/40 Standard Taper Joint","description":"\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eAchieve flawless reagent addition in any reaction scale with our Pressure Equalizing Graduated Addition Funnel. Engineered for precision and durability, this funnel is crafted from high-quality borosilicate 3.3 glass and features a chemically inert PTFE stopcock plus a 24\/40 standard taper joint for secure, leak-resistant connections. The pressure-equalizing side arm ensures smooth, consistent dropwise addition without the need for repeated venting, making it indispensable for air-sensitive and moisture-sensitive reactions. The clear glass body is graduated with easy-to-read volume markings, allowing you to monitor liquid addition with accuracy from start to finish.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eAvailable in five versatile capacities—60ml, 125ml, 250ml, 500ml, and 1000ml—this addition funnel is the ideal choice for organic synthesis, pharmaceutical research, pilot-scale reactions, and any laboratory procedure requiring controlled delivery of reagents.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eKey Features \u0026amp; Benefits:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePressure Equalizing Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e The integral side arm equalizes pressure between the funnel and the reaction vessel, ensuring steady dropwise addition and preventing backpressure or vacuum issues.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePTFE Stopcock:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Chemically inert and highly resistant to aggressive solvents, acids, and bases. Provides smooth, precise flow control without seizing or contamination.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eGraduated Body:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Clear volume markings on the borosilicate glass allow for accurate monitoring of liquid dispensed and remaining.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e24\/40 Standard Taper Joint:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Ensures a tight, leak-resistant fit with 24\/40 compatible flasks, adapters, and stoppers.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePremium Borosilicate 3.3 Glass:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Excellent thermal shock resistance and chemical durability for long service life.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eMultiple Capacity Options:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Choose from 60ml, 125ml, 250ml, 500ml, or 1000ml to suit your specific reaction scale—from small-scale synthesis to pilot-scale processes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan class=\"\"\u003eType:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e Pressure Equalizing (Constant Pressure) Graduated Addition Funnel\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SYNTHWARE","offers":[{"title":"60ml","offer_id":45657354698928,"sku":"P06689","price":49.95,"currency_code":"USD","in_stock":true},{"title":"60ml x 4Pcs","offer_id":45657354731696,"sku":"P06690","price":120.0,"currency_code":"USD","in_stock":true},{"title":"125ml","offer_id":45657354764464,"sku":"P06691","price":55.99,"currency_code":"USD","in_stock":true},{"title":"125ml x 4Pcs","offer_id":45657354797232,"sku":"P06692","price":150.0,"currency_code":"USD","in_stock":true},{"title":"250ml","offer_id":45657354830000,"sku":"P06693","price":59.99,"currency_code":"USD","in_stock":true},{"title":"250ml x 4Pcs","offer_id":45657354862768,"sku":"P06694","price":160.0,"currency_code":"USD","in_stock":true},{"title":"500ml","offer_id":45657418530992,"sku":"P06695","price":65.95,"currency_code":"USD","in_stock":true},{"title":"500ml x 4Pcs","offer_id":45657418563760,"sku":"P06696","price":180.0,"currency_code":"USD","in_stock":true},{"title":"1000ml","offer_id":45657418596528,"sku":"P06697","price":69.95,"currency_code":"USD","in_stock":true},{"title":"1000ml x 4Pcs","offer_id":45657418629296,"sku":"P06698","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/8512\/0944\/files\/PressureEqualizePTFE24-40-125ml.png?v=1791171141","url":"https:\/\/scientificsupplydirect.com\/products\/graduated-constant-pressure-dropping-funnel-teflon-stopcock-19-22-joint-25ml-60ml-125ml-250ml-copy-copy","provider":"Scientific Supply Direct Corp.","version":"1.0","type":"link"}