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,with Flip Off Aluminum Cap,Sterile Package (5ml,10)

Product ID: 606823795

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Details

Bottle type
Glass bottle
Brand
Ks-Tek
Capacity
5 Milliliters
Colour
Purple
Material
Aluminum

🔄Self-healing injection port

🧪5ml precision capacity

🛡️Steam sterilized at 121°C

Description

🧴 Elevate your sample game with sterile precision and smart design!

PRECISION 5 ML CAPACITY - Ideal volume for accurate sample storage and dosing in professional settings.
READY FOR PROFESSIONAL USE - Packaged individually to maintain sterility, perfect for lab and clinical environments.
SECURE FLIP OFF ALUMINUM CAP - Easy access with tamper-evident design for reliable sample integrity.
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 injections without compromising sterility.

Ks-Tek Sterile Empty Vials are premium 5ml glass containers featuring steam sterilization at 121°C, a self-healing PTFE-coated injection port, and a secure flip-off aluminum cap. Individually packaged for guaranteed sterility, these vials are designed for precise, contamination-free sample storage and professional laboratory use.

Specifications

ASIN	B091M4SHD1
Additional Features	Self Healing Injection Port, Steam sterilization
Bottle Type	Glass bottle
Brand Name	Ks-Tek
Capacity	5 Milliliters
Color	Purple
Customer Reviews	4.5 4.5 out of 5 stars (942)
Item Weight	0.12 Kilograms
Manufacturer	Ks-Tek
Material Type	Aluminum
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
UPC	761412515376
Unit Count	10 Count

Reviews

T**E

Good vial

Very good and durable, came sealed

1.01.2026

C**A

Recebi conforme anúncio , nada a reclamar

20.02.2026

E**O

Gostei muito do produto, maravilhoso

22.03.2026

H**L

Amazing little kit! Great quality and the stickers are a great added bonus that others don’t supply!

5.03.2026

H**R

Alles bestens funktioniert ohne Probleme. Alles steril verpackt.

3.12.2025

D**Z

Me gusto el producto porque viene esterilizado y con unas etiquetas para pegar en cada frasco. Todo muy bien con el producto.

18.08.2022

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