Best Lab Coplin Jars of 2026

Brian Howie Avatar
Brian Howie
Last Updated: Jan 7, 2026

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Lab Coplin jars are essential glass containers widely used in laboratories for various applications, including specimen storage and slide preparation. Typically made from durable borosilicate glass, these jars feature a tight-fitting lid that prevents contamination and evaporation. Their clear construction allows easy visibility of contents, making them ideal for monitoring samples. Lab Coplin jars are a staple for researchers and technicians, providing reliable performance and convenience in both educational and professional settings.

At a Glance: Our Top Picks

QWORK Coplin Staining Jar Cover #TOP 1
QWORK Coplin Staining Jar
ftb score rating icon 9.8
SP Bel-Art Coplin Staining Jar Cover #TOP 2
SP Bel-Art Coplin Staining Jar
ftb score rating icon 9.7
Eisco Labs 3PK Coplin Jars Cover #TOP 3
Eisco Labs 3PK Coplin Jars
ftb score rating icon 9.5

Top 10 Lab Coplin Jars

#TOP 1

QWORK Coplin Staining Jar

WD30023
Transparent
4 Pack
QWORK Coplin Staining Jar Cover
QWORK Coplin Staining Jar, 4 Pack 5 Slide Capacity 60 ml Glass Staining Tank

The QWORK Coplin Staining Jar is a high-quality glass staining tank designed for laboratory use. With a generous capacity of approximately 60mL, this stain-resistant jar provides ample space to hold a sufficient amount of stain, reducing the need for frequent refills. The glass lid offers enhanced protection against dust impurity, ensuring the integrity of your staining solutions and maintaining reliable results throughout your experiments or research. The jar is capable of accommodating up to 5 slides vertically or 10 slides back-to-back, maximizing space usage during staining procedures. Crafted from durable soda-lime glass, this stain-resistant jar withstands staining from Eosin or Hematoxylin, ensuring long-lasting durability. The QWORK Coplin Staining Jar is a reliable and convenient tool for your laboratory staining needs.

What We Like
Ample stain capacity
Reliable lid protection
Efficient slide capacity
#TOP 2

SP Bel-Art Coplin Staining Jar

442081000
clear
SP Bel-Art Coplin Staining Jar Cover
SP Bel-Art Coplin Jar – 10-Slide Capacity, Wide 5.3cm Opening, Durable Plastic, Leak-Proof, Autoclavable Microscope Slide Holder for Lab, Histology, Pathology and Research Applications

The SP Bel-Art Staining Jar is a durable polypropylene jar designed for convenient slide staining in laboratory settings. With a larger opening compared to the classic coplin staining jar, this jar offers more convenience when it comes to slide staining. The sealing ring ensures that the jar is watertight, preventing any leakage. It has a capacity to store up to 10 standard slides, making it ideal for larger workloads. Additionally, this jar is autoclavable, allowing for easy sterilization. Overall, the SP Bel-Art Staining Jar combines durability, convenience, and functionality to provide an efficient solution for slide staining in the lab.

What We Like
Larger opening for convenient slide staining
Durable polypropylene construction
Sealing ring for watertightness
#TOP 3

Eisco Labs 3PK Coplin Jars

BI0108PK3
White
Eisco Labs 3PK Coplin Jars Cover
EISCO 3PK Coplin Jars - Staining - Hold 5-10 Slides Each - Polypropylene

Eisco Labs offers the 3PK Coplin Jars, a set of high-quality polypropylene containers designed for staining slides in a laboratory setting. Each jar in this pack of three allows for complete submersion of slides, ensuring efficient and thorough staining. The jars are equipped with four grooves, which separate each slide and allow for two slides to be placed back to back in each groove. With a capacity to hold 5-10 slides, these containers are perfect for accommodating 3" x 1" slides. Made of autoclavable and microwavable polypropylene, these jars are easy to clean and sterilize. With their threaded screw top, they provide a secure closure. The compact size of each Coplin jar, measuring approximately 4.50" tall and 2.36" wide, makes them easy to handle and store.

What We Like
Complete submersion for efficient staining
Separate slides for organized staining process
Autoclavable and microwavable for easy cleaning and sterilization
#TOP 4

QWORK Glass Slide Staining Jar, 2 Pack

WD30640
Transparent
QWORK Glass Slide Staining Jar, 2 Pack Cover
QWORK Glass Slide Staining Jar, 2 Pack Coplin Staining Jar for 10 Slides, Resistant to Staining from Eosin or Hematoxylin

The QWORK Staining Jar Set is designed for your convenience, holding up to 10 slides for various staining tasks. Made from high-quality soda-lime glass, these jars ensure durability and long-term use. You’ll appreciate the thick walls and wide base that enhance stability, preventing any accidental spills during your work. Additionally, the stain-resistant design allows for accurate results with Eosin or Hematoxylin, making your staining procedures more consistent and reliable. This set is perfect for both teaching and scientific research, providing you with a versatile tool for precise staining.

What We Like
Holds up to 10 slides
Durable soda-lime glass
Stable design prevents spills
Stain-resistant for accurate results
#TOP 5

Sieral 6-Piece Staining Jars

AE3701
clear
Sieral 6-Piece Staining Jars Cover
Sieral 6 Pieces Staining Jar 5 Slides Capacity Staining Tank 60 ml Glass Jar with Lid for Lab Microscope Supplies

The Sieral Staining Jars are designed to enhance your staining experience in the lab. With a generous 60 ml capacity, each jar allows you to perform staining with reliability and ease. You can efficiently process up to five slides at once, saving you valuable time during experiments. Made from durable sodium calcium glass, these jars ensure longevity and withstand repeated use. Each jar also features a protective glass lid, which keeps your dyes safe from dust and impurities, maintaining their integrity for better results.

What We Like
Large capacity for convenience
Processes multiple slides efficiently
Durable glass construction
Protective lid against contaminants
#TOP 6

Mipcase Glass Coplin Staining Jar 9-Slide Capacity

S1400XL7RDV14999
As Shown
10X6.5X6CM
Mipcase Glass Coplin Staining Jar 9-Slide Capacity Cover
Mipcase Glass Coplin Staining Jar with Black Lid 9-Slide Capacity Transparent Dyeing Vat for Laboratory Slide Staining and Research

The Mipcase Glass Staining Jar is designed to hold up to nine microscope slides, making it easier for you to manage multiple samples during staining and immersion processes. Made from high-quality glass, it offers excellent clarity and resists damage from acids, alkalis, and other chemicals, ensuring reliable use in tough lab conditions. Its compact size fits neatly on your lab bench or shelf, helping you save space without sacrificing capacity. Plus, the smooth glass surface makes cleaning simple and quick, allowing you to reuse the jar easily and maintain a hygienic workspace.

What We Like
Holds 9 slides securely
High chemical resistance
Compact and space-saving
Easy to clean surface
#TOP 7

PLAFOPE Glass Coplin Staining Jar with Screw Cap

C15WH0214OI7YD6Y
Transparent
10.50X6.50X6.50CM
PLAFOPE Glass Coplin Staining Jar with Screw Cap Cover
PLAFOPE 1pc Glass Staining Jar Wire Coplin Staining Jar with Screw Cap Lab Boilers Coplin Clear Container Container with Lid Tube Mason s 5-slide Capacity Tank Transparent

The PLAFOPE Glass Staining Jar is a handy tool for your lab or scientific experiments. Its glass design makes it easy to clean after use, saving you time and effort. The high-quality glass lets light pass through clearly and resists chemicals, so you can rely on it for accurate results and durability. This jar is perfect for storing staining liquids and soaking cell slides or coverslips, which helps you prepare specimens smoothly. Its round lid design ensures your samples stay secure, making it a practical accessory for labs, schools, or factories.

What We Like
Easy to clean
High light transmittance
Chemical stability
Secure screw cap lid
Suitable for staining slides
#TOP 8

Karter Scientific 214I4 Coplin Staining Jar

4980-1L(Flask-RS)
Transparent
2 Ounces
Karter Scientific 214I4 Coplin Staining Jar Cover
Coplin Staining Jar, 5-Slide Capacity, Glass Lid, 60ml, Karter Scientific 214I4 (Single)

The Karter Scientific 214I4 Coplin Staining Jar is a convenient and efficient tool for laboratory use. With a 5-slide capacity, this glass jar allows you to stain multiple slides at once, saving you time and effort. The slots on the side of the jar hold the slides upright, ensuring they stay in place during the staining process. Made from soda-lime glass, the jar is resistant to staining from Eosin or Hematoxylin, ensuring the longevity of the product. With a 60mL capacity, the jar can hold an ample amount of stain, allowing you to complete multiple staining procedures without the need for constant refills. The Karter Scientific Staining Jar is a reliable and practical choice for any laboratory.

What We Like
5-slide capacity
Slots hold slides upright
Resistant to staining
#TOP 9

Dinglab Glass Coplin Jar with Lid

BLLABRSG
GLASS
5 Slides Capacity
Dinglab Glass Coplin Jar with Lid Cover
Dinglab Glass Coplin Jar with Lid,Microscope Slide Staining Kit for Lab,Slide Staining Trough,Lab Grade Staining Equipment, Microscope Accessories (5 Slides Capacity)

The Dinglab Slide Staining Jar is a handy tool designed for lab use, especially when working with microscope slides. It features a glass jar that holds up to five slides, making it easy for you to stain multiple samples at once. The included lid helps keep your staining solutions secure and prevents contamination, ensuring reliable results. This staining jar also acts as a trough and rack, providing a stable place to hold your slides during the staining process. Overall, this equipment offers convenience and efficiency for your lab slide staining needs.

What We Like
Glass staining jar
Five-slide capacity
Lid included
Slide staining trough
#TOP 10

EISCO Polypropylene Coplin Jar

BI0108
White
EISCO Polypropylene Coplin Jar Cover
EISCO Polypropylene Staining Coplin Jar Holds 5-10 Slides

The EISCO Coplin Jar is designed for efficient slide staining, accommodating 5 to 10 slides with ease. Its unique grooved interior allows you to submerge each slide completely, ensuring even staining. You can place two slides back-to-back in each groove, maximizing the jar's capacity. The jar features a secure threaded screw top, making it autoclavable for easy sterilization. With a compact size of approximately 4.50 inches tall and a diameter of 2.36 inches, this polypropylene jar is perfect for lab use, providing convenience and reliability for your staining needs.

What We Like
Complete slide submersion
Autoclavable for sterilization
Compact and space-saving
Secure screw top
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the function of a coplin jar in the laboratory?

Coplin jars have multiple functions in the laboratory. They can be used for pre-staining with an alcohol buffer, allowing easy manipulation of slides held vertically. Coplin jars can also serve as preparation chambers for micro-thin-layer chromatography.

2. What are the advantages of a coplin jar?

Coplin jars offer several advantages. They come with a screw-on top that prevents spills and evaporation, ensuring the integrity of the staining process. Each jar can hold five single slides or ten back-to-back, providing ample capacity for laboratory needs.

3. What is the content of a coplin jar?

A coplin jar typically contains 95% ethanol as a fixative. It may also include an endocervical brush and an Ayre wooden spatula, depending on the specific laboratory requirements.

4. What fixative is used in a coplin jar?

A coplin jar commonly contains 95% alcohol as a fixative. This type of fixative is suitable for specimens submitted on slides, such as pap smears, fine needle aspiration (FNA) specimens, and endoscopic brushing specimens. The slides should be immersed in the alcohol for a minimum of 15 minutes.

5. What is the purpose of a staining jar?

Staining jars are primarily used to stain cells and tissues on glass microscope slides. Each type of stain is typically used in a separate dish, as staining enhances visibility and differentiation of cellular structures under a microscope.

6. What is the size of a coplin jar?

A coplin jar is approximately 2.25" in length, 1.5" in width, and 4" in height. It is made of flint-glass and is commonly used in histology and tissue staining applications.

Editor's Notes

During our lab coplin jar research, we found 24 lab coplin jar products and shortlisted 10 quality products. We collected and analyzed 4,603 customer reviews through our big data system to write the lab coplin jars list. We found that most customers choose lab coplin jars with an average price of $20.30.

The lab coplin jars are available for purchase. We have researched hundreds of brands and picked the top brands of lab coplin jars, including QWORK, SP Scienceware, EISCO, Sieral, Mipcase. The seller of top 1 product has received honest feedback from 2,117 consumers with an average rating of 4.9.

Written by
Brian Howie Avatar

Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.