Flange Plug Caps, Lavender Polyethylene — 12/13/16 mm, 1000/Case | Globe Scientific

Lavender Flange Plug Caps for 12 mm, 13 mm & 16 mm Tubes — 1000/Case

These Globe Scientific Flange Plug Caps deliver a secure push-in seal for round-bottom and culture tubes across three common bore sizes. Color-coded lavender for fast sample identification, they suit clinical specimen handling, microbiology tube sealing, and general bench storage where consistent closure and visual sorting matter.

Technical Specifications

Available Sizes

Applications

• Sealing clinical specimen and serum tubes during transport and storage
• Closing microbiology culture tubes after inoculation
• Color-coded sample sorting on high-throughput racks
• General bench storage of aliquots in glass or plastic round-bottom tubes
• Capping tubes for short-term refrigerated sample holding
• Reducing evaporation and contamination in stored reagent tubes

Quality & Procurement

labsupplies.com is an authorized Globe Scientific dealer shipping from US inventory. Every case carries lot numbers that support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact our procurement team for volume quotes and standing-order terms.

Frequently Asked Questions

Which tube diameters do these flange plug caps fit?

The line covers 12 mm, 13 mm, and 16 mm tube bore sizes. Select the size that matches your tube's inner diameter for a snug push-in seal; each size ships as a separate SKU.

What material are the caps made from?

They are molded from polyethylene, a flexible polymer that compresses into the tube mouth and provides a leak-resistant closure suitable for aqueous specimens and short-term storage.

Are these caps sterile?

No, the flange plug caps are supplied non-sterile. For applications requiring sterility, validate an in-house autoclave or other sterilization protocol against polyethylene temperature limits before use.

How many caps come in each pack?

Each size is sold in cases of 1000 caps. The listed price is per case, and lot numbers on each case support traceability for accredited lab workflows.