Are these tubes 40ul?

They are standard capillary tubes

Is it the 'receptacle' that has one open end or the tubes themselves that each have an open end? Or is it both??

The tubes themselves have only one open end and the the vial they come in has a hole in the top

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Eisco Borosilicate Glass Melting Point Capillary Tubes, 4", 0.05", 100 Pack | Accurate Melting Point Determination, One Tube Dispensing Lid, Heat & Chemical Resistant Borosilicate, For Chemistry Labs

Product ID: 21374489

📏4-inch length for precision

📦100 tubes with one-at-a-time dispenser

🔥High-temp resistant borosilicate glass

€ 29.30

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.

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Description

🔥 Elevate your lab game with precision and durability in every tube!

THERMAL TOUGHNESS - Crafted from borosilicate glass engineered to endure extreme lab temperatures without cracking.
PRECISION PERFECTED - 4" length and 0.05" diameter ensure exact melting point readings every time.
LAB GRADE DURABILITY - Chemical-resistant glass built to withstand harsh lab environments and repeated use.
CLUTTER FREE WORKFLOW - Innovative dispensing lid releases one tube at a time, keeping your workspace organized and efficient.
BULK SUPPLY ZERO DOWNTIME - 100 tubes per pack means uninterrupted experiments and teaching sessions.

Eisco Borosilicate Glass Melting Point Capillary Tubes are 4 inches long, 0.05 inches in diameter, and made from high-quality borosilicate glass designed for reliable melting point determination. The pack of 100 includes a smart dispensing lid for easy, one-at-a-time tube access, ideal for professional labs and educational settings requiring chemical resistance and high-temperature durability.

Specifications

Asin	B017OARJIE
Best Sellers Rank	#59,254 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #3 in Capillary Lab Tubes
Brand Name	EISCO
Customer Reviews	4.1 4.1 out of 5 stars (30) 4.1 out of 5 stars
Included Components	Product
Item Dimensions	6 x 4 x 4 inches
Item Weight	22.68 g
Manufacturer	Eisco
Material Type	Borosilicate Glass, Glass
Model Number	CH0882B
Number Of Items	1
Part Number	CH0882B
Upc	849230062460

Reviews

User

One end sealed capillary tubes.

These are the perfect outer diameter for my melting point device.

11.07.2026

User

Great for showing my granddaughter about capillary action.

On time, very good quality.Easy to dispense.

25.02.2026

User

Packed well and ready to get just one

These are easy to get out and we can control the dispenser to get just one. They also snap cleanly so it conserves them.I will definitely rebut when we need more.

18.02.2025

User

As they're described

Perfect for what I needed!

5.06.2024

User

Five Stars

This is an excellent product and at a great price.

7.06.2017

User

I ordered three containers of capillary tubes with one closed ...

I ordered three containers of capillary tubes with one closed end. I revived one closed and containers with both ends open. Additional they were mailed in three separate envelopes over about a 5 day period.

2.10.2017

User

Nice

Does their job

25.12.2018

User

As described.

Does the job. good quality

8.09.2016

User

I love these capillary tubes

One end closed. Will order again when needed.

19.06.2019

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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€ 29.30

Duties & taxes included

In stock

Sold byAmazon BelgiumDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Belgium.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

View all Trustpilot reviews