Top Corks for Laboratory Use

The best Lab Corks includes Karter Scientific Cork Stoppers (Pack of 25), EISCO Tapered Cork Stoppers (10 Pack), MECCANIXITY Tapered Cork Stoppers (Pack of 6) and many others as mentioned below.

1

Karter Scientific Cork Stoppers (Pack of 25)

  • High-quality cork stoppers for reliable sealing.
  • Size 5 for versatile applications and uses.
  • Pack of 25 for convenience and bulk savings.
  • Top diameter: 17.4mm for secure fit.
  • Durable and long-lasting material for longevity.
  • Perfect for bottles, jars, and containers.
  • Easy to use and remove when needed.
  • Average Rating out of 5:
  • Price Range: $7.69
2

EISCO Tapered Cork Stoppers (10 Pack)

  • Pack of ten premium quality cork stoppers.
  • Size #10: 31mm length, 20mm bottom diameter.
  • Designed for bottles with 21-24mm openings.
  • Versatile for homebrewing, DIY projects, and sealing.
  • Durable natural bark material ensures long-lasting use.
  • Ideal for both scientific and household applications.
  • Perfect for laboratories, classrooms, and creative uses.
  • Average Rating out of 5:
  • Price Range: $17.79
3

MECCANIXITY Tapered Cork Stoppers (Pack of 6)

  • Pack of 6 tapered cork stoppers.
  • Top diameter: 24mm; bottom: 18mm; height: 29mm.
  • Leakproof and dustproof for optimal sealing.
  • Ideal for wine, beer, and laboratory bottles.
  • Soft, pliable wood prevents cracking and wear.
  • Perfect for DIY crafts and unique decorations.
  • Ensure proper fit by measuring your bottle.
  • Price Range: $7.09
  • Color: Dark Wood Color
  • Material: Wood
4

Labasics (10PK) Solid Silicone Stoppers

  • Pack of 10 solid silicone stoppers.
  • Size 5#: 0.83" bottle, 1.1" top.
  • Durable and resilient silicone material.
  • Long-lasting pliability for secure sealing.
  • Not food grade; for laboratory use only.
  • 1-year limited warranty for customer satisfaction.
  • Contact us for any damage issues.
  • Average Rating out of 5:
  • Price Range: $15.99
5

EISCO Cork Stoppers [10PK] - Size #9

  • Pack of ten premium quality cork stoppers.
  • Size #9: 29mm length, 18mm base diameter.
  • Tapered design fits 19-23mm bottle openings.
  • Ideal for homebrewing and sealing bottles.
  • Durable natural cork material prevents crumbling.
  • Perfect for laboratory and classroom use.
  • Great for creative DIY projects and crafts.
  • Average Rating out of 5:
  • Price Range: $14.69
  • Color: Tan
  • Material: Cork
6

Juvale Size #4 Cork Plugs (100 Pack)

  • Tapered design for perfect fit in small bottles.
  • 100 pack for all your crafting needs.
  • Ideal for test tubes and small jars.
  • Creates tight seals to secure contents.
  • Durable cork material for long-term use.
  • Great for personalized party favors and projects.
  • Compact dimensions ensure versatility in usage.
  • Average Rating out of 5:
  • Price Range: $8.11
  • Color: Brown
  • Material: Cork
7

MECCANIXITY Tapered Cork Stoppers (Pack of 10)

  • Pack of 10 tapered cork stoppers included.
  • Perfect for sealing wine and beer bottles.
  • Made of soft, durable, and pliable wood.
  • Tapered design ensures a tight, leakproof seal.
  • Ideal for laboratory supplies and glass containers.
  • Great for DIY crafts and creative projects.
  • Compact size fits most standard bottle openings.
  • Price Range: $7.89
8

WidgetCo Size 8 Tapered Cork Stoppers (100)

  • Standard grade tapered cork stoppers.
  • Pack of 100 for bulk use.
  • Top diameter: 7/8" (.875" or 22mm).
  • Bottom diameter: 43/64" (.672" or 17mm).
  • Length: 1-1/16" (1.062" or 27mm).
  • Ideal for sealing bottles and containers.
  • Durable material prevents leakage and spoilage.
  • Average Rating out of 5:
  • Price Range: $25.95
  • Size: ‎QTY 100
9

National Artcraft Cork Stoppers [Pkg/6]

  • Durable composition corks for various uses.
  • Lightweight and moisture-resistant design.
  • Perfect for salt and pepper shaker stoppers.
  • Great for decorative bottle and piggy bank stoppers.
  • Measures 1-1/4" top, 7/8" bottom, 1-3/16" height.
  • Strong and attractive for crafts and decor.
  • Pack of six for convenience and value.
  • Average Rating out of 5:
  • Price Range: $9.85
10

EISCO Cork Stoppers (10PK) Size #5

  • Pack of ten premium cork stoppers.
  • Size #5: 22mm length, 12mm base diameter.
  • Tapered shape fits 13-15mm openings.
  • Ideal for bottles, flasks, and tubes.
  • Versatile for home and laboratory applications.
  • Durable natural bark material construction.
  • Great for DIY projects and homebrewing.
  • Average Rating out of 5:
  • Price Range: $9.99
11

WIDGETCO Size 14 Tapered Cork Stoppers (25)

  • Standard grade quality for reliable sealing.
  • Tapered design for easy insertion and removal.
  • Pack of 25 stoppers for bulk convenience.
  • Top diameter: 1-1/4 inches for various applications.
  • Bottom diameter: 1 inch fits standard bottles.
  • Length of 1-1/4 inches ensures secure closure.
  • Great for wine, craft projects, and DIY uses.
  • Average Rating out of 5:
  • Price Range: $24.95
12

EISCO Hexagonal Hollow Stopper (29/32 Cone)

  • High-quality borosilicate glass construction.
  • Hexagonal top for easy handling.
  • 29/32 cone size for versatile applications.
  • Round end for secure sealing.
  • Durable and heavy-duty design.
  • Ideal for science and home laboratories.
  • Resistant to thermal shock and chemicals.
  • Average Rating out of 5:
  • Price Range: $14.69
13

WidgetCo Size 0000 Tapered Cork Stoppers (25)

  • Standard grade tapered cork stoppers for versatile use.
  • Perfect for sealing bottles and containers securely.
  • Compact size 0000 ideal for small openings.
  • Includes 25 cork stoppers in each pack.
  • Durable material ensures long-lasting performance.
  • Top diameter: 3/16" for easy insertion.
  • Regular length of 1/2" fits various applications.
  • Average Rating out of 5:
  • Price Range: $13.95
  • Size: ‎Quantity 25
14

Humboldt Brass Cork Borer Set (12 pcs)

  • High-quality plated brass construction for durability.
  • Includes 12 precision ground cork borers.
  • Variety of sizes from 0.1875" to 0.7968" OD.
  • Designed for clean and precise cutting.
  • Comes with a punch for easy use.
  • Made in the United States for quality assurance.
  • Ideal for woodworking and crafting projects.
  • Price Range: $99.55
  • Material: Plated Brass
15

Frey Scientific Natural Cork #6 (Pack of 100)

  • Natural cork material for effective floor cleaning.
  • Pack of 100 for extended use and value.
  • 19mm top diameter, 15mm bottom diameter, #6 size.
  • Perfect for schools, businesses, and healthcare facilities.
  • Minimizes mess while mopping floors efficiently.
  • Easy-to-use design for quick cleaning tasks.
  • Compact packaging for convenient storage and transport.
  • Average Rating out of 5:
  • Price Range: $18.65
16

Frey Scientific Natural Cork #4 (Pack of 100)

  • Pack of 100 natural cork stoppers.
  • Size 4 with 16mm top diameter.
  • 12mm bottom diameter for secure sealing.
  • Coarse-grained cork may show irregularities.
  • Corrosion resistant for long-lasting use.
  • Ideal for sealing various containers.
  • Great for laboratory and home applications.
  • Average Rating out of 5:
  • Price Range: 0
17

Frey Scientific Natural Cork #2 (Pack of 100)

  • Natural cork material for eco-friendly use.
  • Perfect for various crafting and educational projects.
  • Pack of 100 ensures ample supply for activities.
  • Standard size #2 fits most bottle openings.
  • Great for science experiments and demonstrations.
  • Durable and reliable for long-lasting use.
  • Easy to write on and customize as needed.
  • Average Rating out of 5:
  • Price Range: 0
18

WIDGETCO Size 2 Tapered Cork Stoppers (100)

  • High-quality tapered cork stoppers for various uses.
  • Standard Grade ensures reliable sealing performance.
  • Pack of 100 for bulk storage needs.
  • Top diameter: 1/2" for secure fit.
  • Bottom diameter: 3/8" for easy insertion.
  • Length: 11/16" for versatile applications.
  • Perfect for bottles, crafts, and DIY projects.
  • Average Rating out of 5:
  • Price Range: $17.95
19

WidgetCo Size 13 Tapered Cork Stoppers (100)

  • High-quality tapered cork stoppers for various uses.
  • Standard grade material ensures durability and reliability.
  • Perfect size for bottles and containers.
  • Each stopper measures 1-1/4" in length.
  • Top diameter of 1-3/16" fits most openings.
  • Pack of 100 for convenient storage and usage.
  • Ideal for home brewing and crafts projects.
  • Price Range: $71.50
  • Size: ‎Quantity 100
20

WidgetCo Size 4 Tapered Cork Stoppers (100)

  • High-quality tapered cork stoppers for various uses.
  • Size 4: perfect for bottles and laboratory applications.
  • Top diameter of 5/8 inch for secure fit.
  • Bottom diameter of 15/32 inch for easy insertion.
  • Length of 13/16 inch ensures proper sealing.
  • Pack of 100 for bulk convenience and savings.
  • Durable and eco-friendly natural cork material.
  • Price Range: $17.95
21

EISCO Cork Stoppers [10PK] Size #3 Tapered

  • Pack of ten premium quality cork stoppers.
  • Size #3: 19mm length, 10mm base diameter.
  • Tapered shape for better sealing performance.
  • Ideal for bottles, flasks, and test tubes.
  • Versatile use for household and laboratory applications.
  • Durable natural bark material ensures reliability.
  • Perfect for home brewing and DIY projects.
  • Average Rating out of 5:
  • Price Range: $9.99
22

EISCO Flat Head Glass Stopper [24/29]

  • High-quality borosilicate glass construction.
  • Flat head design for easy sealing.
  • Solid cone shape ensures secure fit.
  • Size 24/29 for standard lab equipment.
  • Durable and heat-resistant material.
  • Ideal for laboratory and scientific applications.
  • Easy to clean and reuse.
  • Average Rating out of 5:
  • Price Range: $11.99
23

EISCO Borosilicate Glass Stopper (29/32)

  • High-quality borosilicate glass construction.
  • Flat head design for secure sealing.
  • Solid cone shape for optimal fit.
  • Size 29/32 joint compatibility.
  • Durable and heat-resistant material.
  • Ideal for laboratory use and experiments.
  • Easy to clean and maintain.
  • Average Rating out of 5:
  • Price Range: $12.49
24

WidgetCo Tapered Cork Stoppers (Qty 25)

  • High-quality tapered cork stoppers for sealing.
  • Pack of 25 for convenience and value.
  • Standard grade for reliable performance and durability.
  • Top diameter: 1 inch for versatile use.
  • Perfect for bottles, jars, and crafts.
  • Regular length of 1-1/4 inches.
  • Easy to insert and remove when needed.
  • Average Rating out of 5:
  • Price Range: $16.95
  • Size: ‎QTY 25
25

EISCO Hexagonal Hollow Stopper (19/26)

  • High quality borosilicate glass construction.
  • Hexagonal top for easy gripping.
  • Flat end design for stable placement.
  • 19/26 cone size fits standard laboratory equipment.
  • Durable and resistant to thermal stress.
  • Ideal for science and home laboratories.
  • Perfect for various scientific applications.
  • Average Rating out of 5:
  • Price Range: $12.99
  • Material: Borosilicate Glass