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

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Ks-Tek Sterile Empty Vials with Self Healing Injection Port,with Flip Off Aluminum Cap,Sterile Package (5ml,10)

Ks-Tek Sterile Empty Vials with Self Healing Injection Port,with Flip Off Aluminum Cap,Sterile Package (5ml,10)

Product ID: 333486049

Details

Bottle Type
Glass Vial
Brand
Ks-Tek
Capacity
5 Milliliters
Color
Purple
Material
aluminum

🔒Leak-proof design ensures zero contamination

🧪121°C steam sterilized for guaranteed purity

🩸Self-healing PTFE injection port for multiple punctures

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€ 24.26

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Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧬 Elevate your lab game with sterile precision and leak-proof confidence!

PRECISION VOLUME CONTROL - Accurate 5ml calibration ensures consistent dosing and measurement
DURABLE BOROSILICATE GLASS - Uniform wall thickness and chip-resistant for reliable handling and storage
INNOVATIVE SELF HEALING PORT - PTFE-coated injection site reseals flawlessly after multiple uses, minimizing contamination risk
SECURE ALUMINUM FLIP OFF CAP - Easy access with tamper-evident seal maintaining airtight, leak-proof protection
STERILE ASSURANCE EVERY TIME - Individually sealed vials with sterilization indicator for uncompromised lab-grade purity

Ks-Tek Sterile Empty Vials (5ml, pack of 10) feature steam sterilization at 121°C, individual sterile packaging with indicator, and a self-healing PTFE injection port under a flip-off aluminum cap. Constructed from durable borosilicate glass, these leak-proof vials provide precise volume calibration and reliable reseal performance, making them ideal for professional laboratory, medical, and controlled compounding applications.

Specifications

ASIN	B091M4SHD1
Additional Features	Leak Proof
Best Sellers Rank	#1,879 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Lab Sample Vials
Bottle Type	Glass Vial
Brand Name	Ks-Tek
Capacity	5 Milliliters
Color	Purple
Customer Reviews	4.5 4.5 out of 5 stars (1,480)
Item Weight	0.12 Kilograms
Manufacturer	Ks-Tek
Manufacturer Part Number	KSUS-SEV-M
Material Type	PLA_(Polylactic_Acid), PC_(Polycarbonate), PTFE_(Polytetrafluoroethylene), aluminum
Model Number	KSUS-SEV-M
Number of Items	10
Number of Packs	1
Product Care Instructions	Handle with Care
Recommended Uses For Product	Single dose usage, laboratory and medical applications, storage and transport of liquids in small quantities
Reusability	Reusable
Shape	Cylindrical
UPC	761412515376
Unit Count	10.0 Count

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