Stoppers

Unique seal system allows use as solid or one-, two- or three-hold closures Simplifies stock room inventory Molded of soft, resilient, white natural rubber Seals vacuum-tested to 760 mm Hg Autoclavable, with good shelf life. Sizes #3 & #4 have two

Unique seal system allows use as solid or one-, two- or three-hold closures Simplifies stock room inventory Molded of soft, resilient, white natural rubber Seals vacuum-tested to 760 mm Hg Autoclavable, with good shelf life. Sizes #3 & #4 have two

Reusable .005in thick PTFE sleeve for standard taper joints provides a grease-free seal.

Reusable .005in thick PTFE sleeve for standard taper joints provides a grease-free seal.

Reusable .005in thick PTFE sleeve for standard taper joints provides a grease-free seal.

Reusable .005in thick PTFE sleeve for standard taper joints provides a grease-free seal.

Natural red rubber or gray chlorobutyl/45 material 7 x 13 or 13 x 20 mm sizes

Natural red rubber or gray chlorobutyl/45 material 7 x 13 or 13 x 20 mm sizes

Natural red rubber or gray chlorobutyl/45 material 7 x 13 or 13 x 20 mm sizes

With a patented Glas-Col Snorkel Stopper, you&#39ll never again have to take time to open the stopcock and relieve pressure when vigorously shaking a separatory funnel, because our Snorkel Stopper does the task automatically. If you use a Glas-Col

With a patented Glas-Col Snorkel Stopper, you&#39ll never again have to take time to open the stopcock and relieve pressure when vigorously shaking a separatory funnel, because our Snorkel Stopper does the task automatically. If you use a Glas-Col

With a patented Glas-Col Snorkel Stopper, you&#39ll never again have to take time to open the stopcock and relieve pressure when vigorously shaking a separatory funnel, because our Snorkel Stopper does the task automatically. If you use a Glas-Col