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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Description

🧴 Elevate your lab game with sterile precision and seamless injection!

STERILE ASSURANCE - Individually steam-sterilized at 121°C for 20 minutes with sterilization indicator for guaranteed safety.
PRECISION 5 ML CAPACITY - Ideal volume for accurate sample handling and dosing.
REUSABLE LABORATORY GRADE - Glass vial designed for professional sterile sample storage and handling.
SELF HEALING INJECTION PORT - Officinal PTFE-coated port ensures contamination-free multiple injections.
DURABLE ALUMINUM FLIP OFF CAP - Secure sealing with easy access, maintaining sample integrity.

Ks-Tek Sterile Empty Vials are 5ml glass bottles featuring a self-healing PTFE-coated injection port and a flip-off aluminum cap. Each vial is individually steam sterilized at 121°C for 20 minutes, ensuring a sterile environment for sensitive laboratory or scientific applications. Packaged in sets of 10, these reusable vials combine durability with precision, making them essential for professionals demanding reliable sterile sample storage and handling.

Specifications

Brand	Ks-Tek
Material	aluminum
Bottle Type	Glass Bottle
Colour	Purple
Capacity	5 Milliliters
Special Feature	Self Healing Injection Port
Product Care Instructions	Hand Wash Only
Recommended Uses For Product	Laboratory or scientific applications where sterile sample storage and handling are required
Number of Items	10
Reusability	Reusable
Shape	Cylindrical
Net Quantity	10.0 count
Item Weight	0.12 Kilograms
Manufacturer	Ks-Tek
UPC	761412515376
Model number	KSUS-SEV-M
Item Weight	119 g
Package Dimensions	10.5 x 8.5 x 7.4 cm; 119 g
Item model number	KSUS-SEV-M
Are batteries included?	No

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