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Stoppers
United Scientific Supplies
Rubber Stoppers
Rubber Stoppers packaged in convenient 1lb bags. Available in solid, 1 hole, and 2 hole versions.
Plasticoid
One-Hole Rubber Stoppers
Size No. 000, 00 and 0 have hole 3 mm diameter; sizes No. 1 and 2 have hole 4 mm in diameter; all other sizes have hole 5 mm in diameter.
Plasticoid
Solid Rubber Stoppers
Standard Grade Size No. 000 is 18 mm long; sizes No. 00 to No. 13 are 25 mm long. Sizes No. 13 1/2, 14 and 15 are 35 mm, 36 mm and 39 mm respectively.
Kimble
Rubber Sleeve, Plug Type Stoppers
Hollow, plug-type stopper fits into the neck of the apparatus. Sleeve extension fits over the neck for a secure seal. Diaphragm can be punctured with a syringe needle. Applications include outgassing NMR sample tubes, use as a pressure vent or for adding reactant via a syringe.
Solid Amber Silicone Stoppers
Free from volatiles or extractable substances which may impair cell growth; for use at temperatures from -80 to 450°F Can be steam sterilized at 15 lbs. pressure, making them suitable for culture tubes containing pathogenic materials Length: 25 mm Not recommended for use with…
Plasticoid
Rubber Stoppers
M35 Green Neoprene for added chemical resistance Listed mainly by trade-size, available in solid, one-hole, and two hole rubber stoppers. Uses vary widely, some are outlined below: Carboy Stoppers Crucible Holders Laboratory & Test Tube Stoppers Masking Applications Micro Stoppers Pipe…
Plasticoid
Twistit Convertible 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 holes; #5 - #10 have the (3)…
United Scientific Supplies
Rubber Stoppers
Convenient assortments of various sizes of rubber stoppers in 1lb bags.
Plasticoid
Two Hole Rubber Stoppers
Standard Grade Sizes No. 00, 0 and 1 have holes 2, 3 and 4 mm diameter, respectively; all other sizes have holes 5 mm diameter
Plasticoid
Stopper Assortment
Made of soft, pliable, black-compounded stock Length: 25 mm Includes stoppers of solid, one-hole and two-hole styles in sizes 00, 0, 1, 2, 3, 4, 5, 6, 6 1/2, 7 and 8; total of 66 stoppers
BD
Multifit Reusable Glass Syringes, Luer-Lok™
Interchangeable plungers Luer-Lok™ tip Without needle Multifit interchangeability eliminates matching components after sterilization. Fine inference line on plunger for precise volume adjustments. Capacity and graduation interval are shown in listings. Zone 2 coded.
Plasticoid
Neoprene Rubber Stoppers
Solid green Neoprene Withstands exposure to temperatures up to 120°C Usable with petroleum products, vegetable and mineral oils and fats which deteriorate natural rubber Standard length: 26 mm Increased functionality over rubber stoppers at elevated temperatures. Not recommended for use…
Corks
THOMAS CLEARANCE SALE! 50% OFF! Original Price: $104.55 CLEARANCE PRICE: $52.28* ? Constructed of cemented sections * Sale price valid only on current stock. Additional units may be available for purchase at original price. Sales are on a first ordered, first served basis.…
Plasticoid
Expansion Plugs, Green Neoprene
Tapered rubber stoppers assembled with stainless steel hardware and a wing nut, provide a mechanism to make an expandable rubber plug. This ensures seals and keeps plugs from working their way out, as well as allowing the plugs to resist added pressure. They are fully customizable from hardware…
Wheaton
Premium Stoppers, Straight Plug with Coating
Complete Coat Stoppers are completely coated with a fluorinated polymer that has barrier properties similar to PTFE. The fluorinated polymer coating is the only material that comes in contact with the sample. As a result, chemical reactions due to unwanted interference with the rubber itself are…
Wheaton
11 mm Stopper, Sleeve (5X11) Red Rub
Sleeve stoppers are plug stoppers with fold-over skirts Used on serum vials and other crimp-finish containers that do not require aluminum seals or overcaps Can be used as an injection site for multiple dose entry Manufactured from natural red rubber, a general-purpose rubber…
Kimble
Glass Pennyhead Stopper, Standard Taper 24/40
Hollow plug type With sealed bottom and vertical penny head
Wheaton
20 mm Stopper, St Plug, Polymer Coating
Completely coated with a fluorinated polymer that has barrier properties similar to PTFE; only material that comes in contact with the sample. Chemical reactions due to unwanted interference with the rubber itself are virtually eliminated. Manufactured in a silicone-free environment.…
Bel-Art Products
Safe-Lab® Glass Stopper 29/42
Interchangeable with penny head stoppers. Use with boiling and distilling standard tapered flasks. These lightweight, hollow, borosilicate glass stopper have a flat hex head for easy gripping. Includes extracting nut for safe removal from flasks with ground joints Chemical resistant and…
Plasticoid
Expansion Plugs, Black Rubber
Tapered rubber stoppers assembled with stainless steel hardware and a wing nut, provide a mechanism to make an expandable rubber plug. This ensures seals and keeps plugs from working their way out, as well as allowing the plugs to resist added pressure. They are fully customizable from hardware…
Kimble
KIMAX Brand Joint Stoppers
Borosilicate, with penny head Conforms to ASTM Standard E 675 Size Standard Taper 13 has solid plug; size Standard Taper 38 has recessed bottom Standard Taper designation indicates the approximate diameter of the ground zone at its widest (gauging) point.
Wheaton
3-Leg Lyophilization Stoppers
1233Z70: 3-leg design provides stability during lyophilization and resists cocking. Constructed of Gray Chlorobutyl/50 material and fit bottles with mouth 13 mm ID x 20 mm OD. 1224A82: 3-leg lyophilization stopper is made from gray chlorobutyl/55 and is used with Wheaton screw neck diagnostic…
Wheaton
13 mm Stopper, St Plug, Polymer Coating
Completely coated with a fluorinated polymer that has barrier properties similar to PTFE; only material that comes in contact with the sample. Chemical reactions due to unwanted interference with the rubber itself are virtually eliminated. Manufactured in a silicone-free environment.…
Bel-Art Products
Scienceware® Cup Type Stoppers
Open at large end, with uniform taper similar to that of rubber stoppers Hollow shell polyethylene construction affords sufficient flexibility to provide secure seal Top edge is reinforced to increase rigidity Can also be inverted for use as loose or tight-fitting caps. Smooth inside walls and…
Bel-Art Products
Scienceware® Safe-Lab® PTFE Stoppers
Of solid PTFE with threaded top on which polypropylene nut is mounted Easily cleaned Conforms to ASTM Standard E 675 Will not freeze; withstands temperatures to ?210°C Interchangeable with penny head stoppers Nut is rotated to apply coaxial force for easy removal of…
Bel-Art Products
Scienceware® Cup Type Stoppers
THOMAS CLEARANCE SALE! 50% OFF! Original Price: $32.85 CLEARANCE PRICE: $16.43* ? Open at large end, with uniform taper similar to that of rubber stoppers Hollow shell polyethylene construction affords sufficient flexibility to provide secure seal Top edge is reinforced to increase…
Wheaton
Snap-On Stoppers
Natural red rubber or gray chlorobutyl/45 material 7 x 13 or 13 x 20 mm sizes
Wheaton
Ultra Pure Stoppers, 20 mm
Bromobutyl rubber compound with a high level of chemical purity Straight Plugs and Lyophilization Stoppers (2-leg, 3-Leg and Igloo) are available All Ultra Pure Stoppers are autoclavable
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