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)

Product ID: 333486049

Details

Bottle Type
Glass Vial
Brand
Ks-Tek
Capacity
5 Milliliters
Material
aluminum
Special Feature
Leak Proof

🔄Self-healing injection port

🧪10 mL precision volume

🛡️Steam sterilized at 121°C

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WS$107

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Description

🧬 Elevate your lab game with sterile precision and seamless reliability!

REUSABLE LEAK PROOF - Durable construction supports multiple uses without compromising sterility or seal.
SELF HEALING INJECTION PORT - PTFE-coated port reseals flawlessly after multiple punctures—no leaks, no fuss.
PRECISION BOROSILICATE GLASS - Uniform wall thickness and defect-free for consistent, reliable volume calibration.
SECURE FLIP OFF ALUMINUM CAP - Easy access with tamper-evident design, maintaining airtight integrity.
LAB GRADE STERILITY GUARANTEED - Individually sealed vials ensure zero contamination risk for your critical samples.

Ks-Tek Sterile Empty Vials (5 mL, pack of 10) feature steam sterilization at 121°C, individually sealed packaging with sterilization indicators, and a self-healing PTFE-coated injection port under a flip-off aluminum cap. Crafted from borosilicate glass with uniform thickness, these vials offer leak-proof, reusable containment ideal for professional lab, research, and compounding applications requiring uncompromised sterility and precision.

Specifications

ASIN	B091M4SHD1
Additional Features	Leak Proof
Best Sellers Rank	#1,758 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #5 in Lab Sample Vials
Bottle Type	Glass Vial
Brand Name	Ks-Tek
Capacity	5 Milliliters
Customer Reviews	4.6 4.6 out of 5 stars (1,418)
Item Weight	0.12 Kilograms
Manufacturer	Ks-Tek
Material Type	PLA_(Polylactic_Acid), PC_(Polycarbonate), PTFE_(Polytetrafluoroethylene), aluminum
Number of Items	10
Product Care Instructions	Handle with Care
Reusability	Reusable
Shape	Cylindrical
UPC	761412515376
Unit Count	10.0 Count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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WS$107

Duties & taxes included

In stock

Sold byAmazon SamoaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Samoa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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