The Best Labware Caps

Looking for the best Labware Caps?

Discover now our comparison of the best Labware Caps. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best Labware Caps are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the Labware Caps in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.

No. 1

SUPERFINDINGS 30Pcs 32.5mm Plastic Labware Caps Black Leakproof Lid Caps Poly Seal Screw Caps Tooth Bottle Cap with Hopper Inner Plug for Essential Oil Empty Refillable Vial

30 Leak-proof Caps: You will receive 30 caps in a consistent style, enough for everyday food sealing and liquid sealing.
32.5mm Bottle Opening: Our black dental bottle caps are 32.5mm in diameter and 13.5mm thick. Please make sure the bottle mouth is 32.5mm in diameter before purchasing, otherwise it is not suitable.
Plastic Material: Made of plastic, durable and able to withstand fermentation pressure, also reusable. The material is strong and lightweight, making it ideal for domestic use.
Sealability: Inserting the cone of the conical cap into the sealing area creates a tight closure that averts not only liquid leakage but also gas leakage, providing you with a good seal and gas tightness.
Wide Application: Suitable for brewing jug lids, daily cosmetics, food, beverage and other containers that need to be sealed for a short period of time, suitable for parties, family gatherings and other occasions.

No. 2

OLYCRAFT 30Pcs 16.5/18/20/22/26mm Phenolic Resin Cover Black Resin Bottle Caps Poly Seal Screw Caps Bottle Jug Storage Cap Lids Replacement Caps for Daily Food Cosmetics Bottles

Ample Quantity -- You will get a total of 30 pcs of 5 different sizes of resin bottle caps, 6pcs/size, the sufficient quantity is enough to meet your daily use needs.
Size Information - The 6 different sizes of bottle caps are about 21mm, 23mm, 24.5mm, 27.5mm, 31.5mm in height; 12mm, 12mm, 13mm, 13mm, 13.5mm in diameter; 16.5mm, 18mm, 20mm, 22mm, 26mm in inner diameter.
Premium Quality--These squeeze bottle lids are made of high quality plastic, which is durable, not easy to break, to ensure long-term use.
Wide Application--Multifunctional bottle caps are very suitable for condiments, cleaning products and many different products. It is very suitable for seasoning, glue, paint, and modeling and crafting activities. Ideal for squeeze bottles and plastic bottles
Recycling--These plastic bottle caps are also easy to clean, you can also reuse them after cleaning or use them for unique crafts, more frugal and eco-friendly.

No. 3

20mm Blue Flip Top Caps-100 Pcs Aluminum-Plastic Blue Caps for Glass Vial

Quantity: 100
Material: Aluminum-plastic
Size: 20mm. Used for 20mm vial and 20mm vial crimper.
Half tear type: This cap is half tear type, that means when you tear off the plastic cap of it, the aluminum cap will stay on the vial. Please see the picture.
The cap is not sterile, but can be sterilized by high temperature.

No. 4

GLOBE SCIENTIFIC 7220010 Carboy, 2.64 gal. Labware Cap. English

Round design maximizes mixing efficiency
Integrated wide handles facilitate easy carrying and pouring, even when wearing gloves
Easy to read, molded graduations
PP Carboys are autoclavable at 121°C and have the best chemical resistance

No. 5

100 Pcs Caps for Empty Juice Bottles, Tamper Seal Lids 38 mm Plastic Bottle Caps Container Lids Bottle Caps for Crafts DIY, 4, 8,12, 16, and 32 oz Container(Black)

Sufficient Quantity for Your Use: you will get 100 pieces of plastic bottle caps in black color; Ample quantity can meet your various uses and replacements, for better seal
Suitable for: the bottle lids measure 38 mm/ 1.5 inch in diameter 16.6 mm/ 0.653 inch in height, suitable for 4 oz, 8 oz, 12 oz, 16 oz and 32 oz containers, as long as the opening of the bottle is 1.5 inch wide, these caps will fit, please measure carefully before buying
Lightweight and Safe: adopting quality plastic material, these bottle caps for crafts are reliable and safe, lightweight and portable, easy to carry and collect, you can use them with confidence
Tamper Proof Seal: with a tamper proof seal design, the water bottle caps are convenient for you to make sure no one has opened the bottles, better storage
Wide Usages: these empty juice bottles caps are simple for you to sealing milk, juice, water, soda and so on, you can take them whenever you want when you need a drink, also can be regarded as DIY accessories, use your creativity and imagination

No. 6

Scientific Labwares Disposable Punch Biopsy with Protective Cap, 3.5mm, Sterile, Single Punch Blade, Indivdually Packed (Box of 10)

Seamless, razor sharp stainless steel blades
Diameter reading for quick identification
Conveniently packaged in peel-apart envelope
Ribbed, hollow handle provides easy specimen retrieval and composure
Supplied with blade cover for user protection

No. 7

Ks-Tek 5pcs GL45 Screw Caps with Pouring Ring for Laboratory Glass Bottles, Polypropylene, 45 mm (Blue)

With Pouring Ring
Various colors available GL45 Screw Cap
Package of 5pcs
Can fit to all reagent bottles from different brand(GL45)
Max 140°C

No. 8

PATIKIL 24mm/0.94" Foam Lid Liner, 100Pack PS Foam Resistant Tamper Pressure Sensitive Seal for Bottle Cap Liners Seals

Size: 24mm x 1mm / 0.94inch x 0.04inch (Dia x T); Packing List: 100 x Pressure Sensitive Liners. The outer diameter of the bottle mouth is consistent with the diameter of the product
Advantage: The pressure-sensitive seal which is made of polystyrene foam material effectively avoids dust, moisture and dirt into the jar and prevents leaks and odors in the bottle so that it can keep the dry or powder products fresh at all times. In addition, it can protect your products from tampering securely. No induction sealers or heat shrink bands needed with these liner seals. No tools or heat gun required. This foam seal peels easily from the container When you need to open.
Instruction: 1. Keep the cap where the seal needs to be attached clean, make sure there are no water spots and oily residues.; 2. Put the lettering side of the seal into the cap and apply a little pressure to attach it tightly; 3. Finally, Screw the lid on as tightly as you possibly can, the seal is activated by the pressure of applying the lid and will adhere within 12-24 hours (No Strong Stickiness).
Application: Foam lid liners are coated with a torque-activated coating, after tightening the lid, they can be adhesive to glass, plastic and metal jars, as well as round containers with metal or plastic lids and closures.
NOTE: 1. Please make sure the right size you need before ordering. 2. Once the seal is removed, the tightness will be affected when reused. 3. These pressure-sensitive liners are best used with powder or dry products, not suitable for applications containing oil; Avoid overfilling the container. 4. It is recommended to wait enough time before removing the cover after installation. 5. These PS foams are not suitable for use at high temperatures.

No. 9

AYLIFU 12 Pcs 28/410 Natural twist top caps Black Twist Bottle Caps Squeeze Bottle Replacement Twist Caps Suitable for extrusion bottles, replacement caps, cosmetics bottles, crafts bottles, AF-07827

Product material: The natural twist cover is made of polypropylene (pp) plastic to ensure durability. The selected material is resistant to chemical corrosion and has excellent sealing properties, making it ideal for containers.
Package and dimensions: Total dimensions: 31 x 45mm / 1.22 x 1.77 inches (L * W); Inner diameter: 28mm / 1.1 inches; Tip length: 25mm / 0.98 in. 12 black bottle dispensing caps per pack, enough to meet your needs.
Compatible: This natural twist cap works with any 28/410 threaded container. Screw cap design is easy to unscrew, good sealing, to ensure that the internal product is not affected by environmental factors, leakproof, waterproof, not easy to crack and damage.
Instructions: To use our twist caps, simply screw them onto bottles that are bottle size compatible. Unscrew the cap when in use and tighten the cap after use to prevent leakage or drying out.
Versatile: Squeeze bottle replacement Twist caps are ideal for condiments, glues, paints, models and craft activities, making them perfect for squeeze bottles and plastic bottles.

No. 10

ZYAMY 16PCS Black Phenolic Resin Cap Sealing Screw Cap 28mm Leak Proof PP Plastic Cap for Daily Chemical Food Cosmetic Bottle Industrial Use Medicine Bottling Hose Cap

Contains 16 pieces of 28mm black phenolic resin caps polyethylene sealing screw caps suitable for daily chemical, food, cosmetic bottles and industrial use.
Premium quality material: Boston cap is made of durable plastic that can withstand fermentation pressure and chemicals. It is reusable and durable. Please make sure the bottle mouth diameter is 28mm before purchasing, otherwise it is not suitable.
Seals well: Insert the phenolic resin cap into the sealing area to form a tight closure, preventing liquid leakage, carbonation, and gas leakage, providing you with a good closure and air tightness.
Food grade: Ideal for pharmaceutical and industrial use. Polyethylene sealing nuts are resistant to high temperatures, chemical corrosion and chemical volatility.
Wide range of uses: widely used in a variety of daily chemicals, food, cosmetics, pharmaceuticals and other soft and hard packaging bottles and hose caps.

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Last update on 2025-07-03 / Affiliate links / Images from Amazon Product Advertising API

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