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Your cart is empty.These Labflow, USA Lab Glass Stopcock valve is used to regulate the flow of gases or liquids into reaction systems and is made of 3.3 borosillicate glass. They fit in the top of the Reactor's Receiving Flask and Material Flask. Sizes available: 24/29, 29/42, 34/35 & 34/35 We ship all glassware products with additional care, but sometimes they arrive broken. If glassware arrives broken, please contact us within 3 days of receiving your product and we will either send you a brand new piece or send you a refund! Any glassware broken after delivery voids all warranties. Thank you for understanding! For Technical Support, Questions, or Other Issues Please Email or Call Us!
$19.99
$ 9 .99 $9.99