Wuxi Nest Sample Vials Screw Cap with Sealing Ring, Flat Cap, Natural Color, Sterile Bag Package, 500 pcs/pack, 4 packs/case, 2000 pcs/case , 633981N

Screw cap with sealing ring for sample vials, flat cap design, natural color, supplied sterile in bag packaging. The cap is intended to secure and seal screw-cap microvials for preservation and low-temperature storage of serum, culture medium, cells, tissues and other reagents. The flexible O-ring in the screw cap provides secure closure and a sound sealing effect and the product is supplied in sterile bag packs for laboratory use.

Key Features:

• Flat screw cap with sealing (O-) ring
• Natural (clear/white) color
• Sterile, bag package: 500 pieces per pack
• Packing configuration: 4 packs per case (2000 pieces per case)
• Suitable for screw-cap micro tubes / sample vials

Advantages:

• Flexible O-ring ensures safe, reliable sealing and prevents liquid leakage under negative pressure testing.
• Sterile bag packaging supports aseptic handling and storage.
• Bulk packing (500 pcs/pack; 4 packs/case) simplifies inventory management for laboratories.
• Natural color cap provides neutral identification when colored coding is not required.