What are the exact dimensions of the 20ml and the 30ml vial: diameter and height?

I do no know, I purchased the 10ml vials. It says 50 x 22 mm on the box.

Does the rubber seal on the inside of the vial have a small gap in the rubber to allow all of the med to be drawn up, or is it continuous on inside?

I've never seen what you mention. The rubber is a one piece seal with no holes. When you insert a syringe into it, it makes a hole, however, it seals up (this is the self healing feature they're talking about). So you tear the plastic cap off permanently, which exposes the rubber seal. It seals up so tight, that the contents can not escape even when upside down.

For the seller: What is meant by "self-healing"? I've never seen that before, aren't all multi-dose vials just made from identical butyl rubber?

Yeah it’s just like every other vial. Normal rubber tops

Ks Tek Sterile Empty Vials With Self Healing Injection Port

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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$59.31

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Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧬 Elevate your lab game with sterile precision and smart design!

DURABLE ALUMINUM FLIP OFF CAP - Secure, easy-to-remove aluminum-plastic cover for hassle-free handling and protection.
COMPACT PRECISE 5 ML CAPACITY - Ideal for exact sample storage, perfect for lab professionals who demand accuracy.
READY TO USE STERILE PACKAGING - Each vial is individually sealed with sterilization indicator for instant assurance and convenience.
STERILE CONFIDENCE IN EVERY VIAL - Individually steam-sterilized at 121°C for guaranteed purity and safety.
INNOVATIVE SELF HEALING INJECTION PORT - PTFE-coated port ensures contamination-free multiple access without compromising sterility.

Ks-Tek Sterile Empty Vials are premium 5ml glass containers featuring a self-healing PTFE-coated injection port and a secure flip-off aluminum cap. Each vial is individually steam sterilized at 121°C and packaged with a sterilization indicator, ensuring uncompromised sterility and durability. Perfect for professional laboratory sample storage and scientific applications, these vials combine precision, safety, and convenience in one sleek package.

Specifications

ASIN	B091M4SHD1
Additional Features	Self Healing Injection Port, Steam sterilization
Bottle Type	Glass bottle
Bottle type	Glass bottle
Brand	Ks-Tek
Brand Name	Ks-Tek
Capacity	5 ml
Color	Purple
Colour	Purple
Customer Reviews	4.6 out of 5 stars 1,499 Reviews
Item Weight	0.12 Kilograms
Manufacturer	Ks-Tek
Manufacturer Part Number	KSUS-SEV-M
Material	Aluminum
Material Type	Aluminum
Model Number	KSUS-SEV-M
Number of Items	10
Product Care Instructions	Store the bottle at room temperature. Avoid extreme temperatures and humidity. Clean the bottle before use. Use immediately after opening.
Recommended Uses For Product	Laboratory sample storage and scientific experiments
Reusability	Disposable
Shape	Cylinder
Special features	Self Healing Injection Port, Steam sterilization
UPC	761412515376
Unit Count	10 Count

Reviews

T**E

Good vial

Very good and durable, came sealed

1.01.2026

C**A

Viel esterilizado

Recebi conforme anúncio , nada a reclamar

20.02.2026

B**R

Schnelle Lieferung

Artikel wie beschrieben

16.06.2026

E**O

excelente

Gostei muito do produto, maravilhoso

22.03.2026

S**4

Recommended.

I have been using them for TRT for many months now, with no problems at all. Recommended.

29.04.2026

K**.

Great Product

Great Vials very well packed. so much cheaper then buying singles.

17.03.2026

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