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 Filler with Flip-off Aluminum Cap Sterile Package (3ml 10)

Ks-Tek Sterile Empty Vials with Self-Healing Filler with Flip-off Aluminum Cap Sterile Package (3ml 10)

Product ID: 726752094

Details

Bottle Type
Glass bottle
Brand
Ks-Tek
Capacity
3 Milliliters
Material
Aluminum
Special Feature
Self-healing

🔄Self-healing PTFE injection port

🧪3ml precision glass vial

🛡️Sterile steam sterilized at 121°C

Description

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

SELF HEALING INJECTION PORT - Innovative PTFE-coated port that reseals after each injection, maintaining vial integrity and preventing leaks.
PRECISION ENGINEERED 3 ML GLASS VIALS - Crystal-clear, single-dose vials designed for exact measurements and contamination-free storage.
STEAM STERILIZED FOR ULTIMATE SAFETY - Autoclaved at 121°C for 20 minutes ensuring guaranteed sterility and peace of mind.
INDIVIDUALLY PACKAGED FOR PROFESSIONAL USE - Each vial is sealed in a sterile package, perfect for lab, medical, or scientific environments demanding uncompromised hygiene.
FLIP OFF ALUMINUM CAP WITH GERMICIDAL INDICATOR - Secure, tamper-evident aluminum-plastic cover with built-in germicidal indicator for instant sterility confirmation.

Ks-Tek Sterile Empty Vials are 3ml single-dose glass containers featuring a self-healing PTFE injection port and a flip-off aluminum cap. Steam sterilized at 121°C for 20 minutes and individually packaged with a germicidal indicator, these vials ensure maximum sterility and durability for medical and scientific applications.

Specifications

ASIN	B09B7SSQ1L
Additional Features	Self-healing injection port, aluminum plastic cover
Amazon Bestseller	#456,353 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #372 in Lab Vials
Bottle Type	Glass bottle
Brand Name	Ks-Tek
Capacity	3 Milliliters
Customer Reviews	4.4 4.4 out of 5 stars (365)
Item Weight	0.08 Kilograms
Manufacturer	Ks-Tek
Manufacturer Part Number	KSUS-SEV-M
Material Type	Aluminum
Model Number	KSUS-SEV-M
Number of Items	10
Product Care Instructions	Please handle with care
Recommended Uses For Product	Medical, Science
Reusability	Disposable
Shape	Round
UPC	766615653535
Unit Count	10.0 Count

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