150 mL Polypropylene Specimen Containers with Screw Caps — Natural, 20/Bag (220-5625-03K)
These 150 mL wide-mouth threaded specimen containers are the largest format in the Caplugs® Evergreen threaded container series, purpose-built for surgical pathology workflows where large tissue specimens, colectomy and resection samples, or bulk organ fixation require complete submersion in fixative. Manufactured from natural polypropylene (PP) and supplied non-sterile in convenient 20/Bag quantities, part number 220-5625-03K delivers full formalin and organic fixative compatibility alongside a secure, re-sealable threaded screw cap for long-term archiving and transport.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 220-5625-03K |
| Capacity | 150 mL |
| Closure | Wide-mouth threaded neck with screw cap |
| Material | Polypropylene (PP) |
| Color | Natural |
| Sterility | Non-Sterile |
| Pack Size | 20/Bag |
| BPA / Phthalate / Latex | BPA-Free, Phthalate-Free, Latex-Free |
| FDA-Compliant Resin | Yes |
| Country of Origin | USA |
Applications
- Surgical pathology grossing: fixation of large tissue specimens and resection samples requiring complete submersion in 10% neutral buffered formalin
- Colectomy, appendectomy, and other large surgical resection specimens where 120 mL containers are insufficient
- Organ and bulk specimen fixation in pathology and translational research laboratories
- Long-term formalin archiving and museum preparation — the threaded screw cap provides a secure, re-sealable closure to prevent evaporative loss
- Environmental and regulatory bulk sampling where a wide-mouth, chemically resistant 150 mL container is required
- Biorepository tissue storage with standard fixative or cryoprotectant reagents
- Specimen transport via courier or mail — the threaded closure provides leak-resistant performance during transit
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline (pH 2–12) | Excellent |
| Formaldehyde / formalin (10% NBF) | Excellent |
| Glutaraldehyde (EM fixative) | Excellent |
| Methanol / acetonitrile | Excellent |
| Bouin's solution (picric acid-based) | Excellent |
| Dilute acids and bases | Excellent |
| Ethanol (<70%) | Good — short-term contact |
| Dichloromethane / chloroform | Not recommended |
Quality & Procurement
Made in USA, these specimen containers are produced by Caplugs® Evergreen under ISO 9001 quality management from FDA-compliant polypropylene resin that is BPA-free, phthalate-free, and latex-free. The 150 mL format is the maximum-capacity offering in the threaded specimen container series; laboratories with smaller fixation volumes may also consider the 120 mL PP containers (220-5614-03K, 25/Bag), 90 mL PPC containers (220-5603-08K, 100/Bag), or 60 mL PPC containers (220-5601-08K, 500/Bag). LabSupplies.com is an authorized Caplugs® Evergreen dealer shipping from USA inventory, typically same business day for stocking items, with tiered pricing available for high-volume pathology labs and institutional procurement teams.
Frequently Asked Questions
Are these specimen containers sterile?
No — they are supplied non-sterile. For most surgical pathology and histology fixation workflows, sterility is not required because specimens are immediately placed into a chemical fixative such as formalin. If your protocol requires sterile containers, please contact us for guidance on available alternatives.
Is polypropylene compatible with formalin and other standard fixatives?
Yes. Polypropylene offers excellent resistance to formaldehyde, 10% neutral buffered formalin, glutaraldehyde, Bouin's solution, and most aqueous fixative systems. It is not recommended for use with chlorinated solvents such as dichloromethane or chloroform.
Why choose the 150 mL size over the 120 mL format?
The 150 mL container is the largest in this threaded series and is intended for large surgical resection specimens — such as colectomy, appendix, or organ segments — where a 120 mL container does not provide sufficient volume for complete fixative submersion. The wide-mouth opening also accommodates surgical spatulas and large tissue sections during grossing.
Can the screw-cap closure be used for long-term formalin storage and archival?
Yes. The threaded screw cap provides a secure, re-sealable seal well suited to long-term formalin archiving, museum preparation, and transport. As with all formalin containers, inspect the closure periodically during extended storage to ensure continued integrity.