#7 Rubber Stopper

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#7 Rubber Stopper
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  • …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) holes. 8744H10 Assortment includes nine size 3, eight size 4, six size 5, four size 6, two each sizes 7 and 8, one each sizes 9 and…

  • Filter Stopper RBR #8 0.625" Hole

    Thermo Scientific Nalgene

    No. 8, rubber For use with 145- and 147-series analytical test filter funnels and filter funnel with clamp

  • 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.

  • …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 with very light oils, such as kerosene.

  • 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.

  • 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

  • Assorted 1 Hole Rubber Stoppers

    GSC International, Inc.

    1 pound package of assorted 1 hole rubber stoppers. Sizes and quantities are as follows: Size 00: 4 each Size 0: 4 each Size 1: 4 each Size 2: 4 each Size 3: 4 each Size 4: 3 each Size 5: 3 each Size 6: 3 each Size 7: 3 each

  • Stopper Assortment

    Plasticoid

    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

  • Drinking Bottles

    Maryland Plastics

    16 oz. glass drinking bottle is 7” long Neck accepts size 8 1/2 (1113R53) rubber stopper which takes Thomas number 1113S10 Drinking Tube Stopper and drinking tube must be purchased separately.

  • Serum Bottle Stoppers

    DWK Life Sciences (Wheaton)

    Available in Natural red rubber, gray butyl and Teflon® coated butyl 7, 13 and 20 mm sizes Stoppers come in a variety of elastomer formulations. Natural rubber is a general-purpose elastomer used primarily for aqueous liquid fill products in the 4.0-7.5 pH range. Its resealability is…

  • Black Rubber Stoppers

    GSC International, Inc.

    A black rubber stopper that is useful in a number of applications. Available in a variety of sizes. Each pack is one pound. Choose from solid, 1 hole, and 2 hole stoppers.

  • Rubber Stoppers

    Plasticoid

    …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 Plugs Tube Stoppers

  • Gray Chlorobutyl Straight-Sided Stoppers

    DWK Life Sciences (Kimble)

    These high quality gray chlorobutyl stoppers are used for research and pharmaceutical packaging applications. Universal gray chlorobutyl formulation passes Japanese, European and United States pharmacopeia testing for globally marketed pharmaceutical products Formulation contains no…

  • …funnel to stem for fast filter changes. Used with 47 mm membrane filters for coliform testing and prefiltration of many fluids. Fits standard manifold systems with #8 rubber stopper connections. Capacity 300 mL (10 oz). Measures 23 x 7 cm (9 x 2.75"). Autoclavable. Pall Life Sciences (Gelman).

  • Assorted 2 Hole Rubber Stoppers

    GSC International, Inc.

    RS-2H-C 1 pound package of assorted 2 hole rubber stoppers. Sizes and quantities are as follows: Size 2: 3 each Size 3: 3 each Size 4: 3 each Size 5: 3 each Size 6: 3 each Size 7: 3 each Size 8: 3 each

  • Lypholization-Slotted Rubber Stopper

    DWK Life Sciences (Wheaton)

    Plug diameter 7 mm i.d., 13 mm o.d. Of gray butyl rubber, slotted with flanged top; partial insertion leaves bottle contents vented for freeze drying; insertion to flange seals bottle Readily punctured with syringe needle For use with Thomas series 8269A Aluminum Seals.

  • Rubber Stopper Economy #7

    Maryland Plastics

  • Recommended where natural rubber would deteriorate or be attacked.

  • Extra heavy, unmarked blanks for fabrication of filter apparatus. Top has a tooled finish to accept a rubber stopper or neoprene filter adapter.

  • Nalgene Polypropylene Carboys

    Thermo Scientific Nalgene

    … Graduated to contain in 1-gallon and 5-liter increments Two molded handles and size 83B polypropylene screw cap; also accepts No. 13 1/2 rubber stopper in place of cap Not recommended for use with hazardous materials Autoclavable and leakproof Dimensions: 10 liter carboy: 15 1/4” high;…

  • Assorted Solid Rubber Stoppers

    GSC International, Inc.

    1 pound pack of assorted solid rubber stoppers. Sizes and quantities are as follows: Size 00: 4 each Size 0: 4 each Size 1: 4 each Size 2: 3 each Size 3: 3 each Size 4: 3 each Size 5: 3 each Size 6: 3 each Size 7: 3 each

  • End tooled to accept rubber stopper septum. Used on Chromatographic Columns. Overall length 15cm, opening is 5mm. Rubber septum listed below. Socket also works well with 12898 Septum, see Division II.

  • Deep µLplates®

    MicroLiter

    …security of a stopper coupled with the strength of a mechanical closure system. The mechanical closure system permits even GC samples can be converted to 96-well format, by sealing the limited volume insert on the inside surface of the insert and compressing the PTFE/silicone rubber using a…

  • Snap-On Stoppers

    DWK Life Sciences (Wheaton)

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

  • …security of a stopper coupled with the strength of a mechanical closure system. The mechanical closure system permits even GC samples can be converted to 96-well format, by sealing the limited volume insert on the inside surface of the insert and compressing the PTFE/silicone rubber using a…

  • For sulphur absorption chamber, after Edgar and Callingaert. Diameter of disc 30mm, height above disc 200mm, capacity 130mL. Will fit a No. 7 rubber stopper.

  • Ultra Pure Stoppers

    DWK Life Sciences (Wheaton)

    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 Ultra Pure Straight Plug Stoppers are made from a bromobutyl rubber compound containing the…

  • Filter Funnel, Threaded

    Thermo Scientific Nalgene

    … Screw-type closure holds membrane in place Autoclavable Can be used with any filtering flask or manifold that accepts a suitable rubber stopper with hole. Includes one easy-to-use, no-twist Nalgene® vacuum gasket, which can replace a No. 7 or 8 rubber stopper with a 9/16” (15 mm) hole.

  • …drops easy with no need to open collection tubes Dispenses one drop of blood onto test cartridge or cassette Fits standard glass or plastic blood tubes with rubber stoppers Polystyrene USP Class VI Stainless steel canula Not Autoclavable 100 per box/5 boxes per case Made in USA

  • 3mL Spin Columns

    G-Biosciences

    …can also be used for gravity flow purification. Supplied with matching cap and rubber stoppers Features Total Volume: 7ml Resin Volume: 3ml Reservoir Volume: 4ml Graduated Closure: Rubber Stopper Cap: Screw cap cap Frit: 1.57mm 15-50µm hydrophilic polyethylene

  • …this apparatus is supplied with Ace-Threds in place of rubber stoppers, where practical. #50 thread at center holds a test tube with a #25 bushing, open top test tube utilizes a rubber stopper to secure a thermometer and wire stirrer, #7 Ace-thred thermometer port on one side, 22mm I.D. opening…

  • …and Designing Solutions; Developing and Using Models Kit Includes: 1 Photosynthesis/Respiration Demonstration Chamber w/Lid 1 Rubber Stopper, #00 1 Rubber Stopper, #7 Required: O2, CO2, Light sensors DOT Info: Non-regulated *”Next Generation Science Standards” is a registered trademark of…

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