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MLS 5mL Tubular Clear Type 1 Glass Serum Vials, 20mm, Qty. 204

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Availability : In stock
Quick Overview

In order to receive sealed sleeves please order in multiples of 204. For case quantities, order in multiples of 1,020. Med Lab Supply distributors of Complete Serum Vial Component Systems and Supplies.


MLS 5mL Tubular Clear Glass Serum Vials

MLS, formerly RLS Vials, 5ml Tubular Clear Glass Serum Vials distributed by Med Lab Supply are sealable with a 20 mm stopper and 20 mm aluminum seal. (Sold Separately). Our vials are manufactured to the highest quality standards and are equivalent or superior in quality to Kimble and Wheaton vials. The tubular series of RLS vials are clean, dust free, and shrink wrapped to ensure they remain that way. All RLS tubular vials are USP TYPE 1 borosilicate 7.0 glass which meets DIN - ISO standard 3585.  This is the lightest, strongest, and most chemical and heat resistant lab glass available. More durable and lighter in weight than molded vials/bottles.   

Serum vials are ideally suited for the handling, containment and storage of a variety of liquids, acids, pharmaceuticals, alkalis, essential oils, chromatography samples and more. Serum Vials have special design that adds strength for freeze drying applications. Vials are autoclavable. Vials have a blow back design that provide easily insert of lyophilization stoppers. 


Quick Reference Specifictions:


Type I Borosilicate





CAPACITY (mL or oz)

5mL or .17 ounces

Full Capacity: 8mL or .27oz

CAPACITY (mL or dr)

5mL or  1.35 dram

Full Capacity: 8mL or 2.16dr







Med Lab Supply carries a very large variety of stoppers including: clear chemical, humidity, acid and temperature resistant silica stoppers, standard red and grey rubber stoppers, and 2 and 3 pronged Lyophilization stoppers that have complete seal and freeze dry application.  Our vast line of seals including: standard aluminum, flip top, and dual tone flip top seals; all in a large selection of colors will offer the most professional finished product.  


Please click for a complete list of available: Stoppers 

Please click for a complete list of Serum Vial: Aluminum & Flip top Seals 

Please click here for our complete line of system components for: Serum Vial Packaging


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