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 (20ml,10)

Product ID: 328715384

Details

Bottle Type
Glass Bottle
Brand
Ks-Tek
Capacity
20 ml
Color
clear
Material
aluminum

🧪20ml sterile glass vial

♨️Steam sterilized at 121°C

🛡️Self-healing PTFE injection port

₹ 2893

Duties & taxes included

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Description

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

PREMIUM GLASS CONSTRUCTION - Durable, clear glass vial designed for professional lab and medical environments.
INNOVATIVE SELF HEALING PORT - PTFE-coated injection port reseals after each use, maintaining vial integrity and preventing leaks.
SECURE FLIP OFF ALUMINUM CAP - Easy-to-remove yet tamper-evident aluminum cap guarantees safety and convenience.
STERILE READY FOR PRECISION - Individually steam-sterilized vials ensure contamination-free sample storage every time.
CERTIFIED STERILIZATION INDICATOR - Visual confirmation of sterilization completion for assured quality control.

Ks-Tek Sterile Empty Vials are 20ml glass containers individually steam sterilized at 121°C for 20 minutes, featuring a self-healing PTFE injection port and a flip-off aluminum cap. Packaged sterile with a sterilization indicator, these vials offer reliable, contamination-free sample storage ideal for medical and scientific professionals.

Specifications

ASIN	B091MVVF5X
Additional Features	Self Healing Injection Port
Best Sellers Rank	#2,543 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Lab Sample Vials
Bottle Type	Glass Bottle
Brand Name	Ks-Tek
Capacity	20 ml
Color	clear
Customer Reviews	4.6 4.6 out of 5 stars (1,618)
Manufacturer	Ks-Tek
Manufacturer Part Number	KSUS-SEV-M
Material Type	PLA_(Polylactic_Acid), PC_(Polycarbonate), PTFE_(Polytetrafluoroethylene), aluminum
Model Name	KSUS-SEV-M
Model Number	KSUS-SEV-M
Number of Items	10
Number of Packs	10
Product Care Instructions	Handle with care, maintain sterility, do not wash or expose to water once used
Recommended Uses For Product	Laboratory, Household
Reusability	Single-Use
Shape	Round
UPC	761412019843
Unit Count	10 Count

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