250 mL Wide-Mouth Specimen Containers with Screw Caps — Polypropylene, Natural, 72/Bag (220-9250-03K)
These 250 mL polypropylene specimen containers feature a threaded wide-mouth neck and screw cap, making them a versatile choice for environmental sampling, bulk tissue fixation, food testing, and reagent preparation at the 200–250 mL scale. Supplied non-sterile in 72/Bag packaging, part number 220-9250-03K is manufactured from natural PP — a material that resists formalin, acid preservatives, and a broad range of organic solvents while tolerating water-bath temperatures up to approximately 80°C. The wide-mouth opening accepts wide-bore pipettes, sampling scoops, and direct specimen placement that narrow-neck bottles simply cannot accommodate.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 220-9250-03K |
| Capacity | 250 mL |
| Closure | Threaded wide-mouth neck with screw cap |
| Material | Polypropylene (PP) |
| Color | Natural |
| Thermal Rating | ~80°C (water bath) |
| Sterility | Non-Sterile |
| Pack Size | 72/Bag |
| BPA / Phthalate / Latex | BPA-Free, Phthalate-Free, Latex-Free |
| Country of Origin | USA |
Applications
- Environmental water sampling: Wide-mouth opening allows direct dip-and-fill collection; PP is fully compatible with HCl and H₂SO₄ acid preservatives used in regulatory protocols
- Soil and sediment sampling: Wide mouth accommodates sampling scoops and spatulas for field collection and regulatory testing workflows
- Bulk tissue fixation: 250 mL formalin-compatible capacity suits multi-biopsy lots and batched surgical pathology specimens
- Food testing specimen collection: Wide-mouth format simplifies loading of food matrices for food safety laboratory analysis
- Reagent and media preparation: PP's broad chemical compatibility makes these containers suitable for preparing buffers, reagents, and culture media at the 200–250 mL scale
- Refrigerated sample storage: Threaded screw cap provides leak-resistant re-sealable closure for short- and long-term cold storage
- Reference standard preparation: PP is inert to standard analytical reagents used in analytical chemistry workflows
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline (pH 2–12) | Excellent |
| Formaldehyde / formalin (10%) | Excellent |
| Dilute HCl / H₂SO₄ (<10%) | Excellent — compatible with standard acid preservatives |
| Methanol / acetonitrile | Excellent |
| Chlorinated solvents (chloroform, DCM) | Not recommended — limited resistance |
| Aromatic solvents (toluene, xylene) | Not recommended — limited resistance |
Quality & Procurement
Made in USA, these Caplugs® Evergreen specimen containers are produced from FDA-compliant, BPA-free, phthalate-free, and latex-free polypropylene resin under ISO 9001 quality management standards. LabSupplies.com is an authorized dealer and ships from USA inventory, typically same business day for stocking items. Laboratories requiring larger format containers can step up to the 400 mL (220-9400-03K), 500 mL (220-9500-03K), or 750 mL (220-9750-03K) siblings within the same Caplugs® Evergreen series. Tiered pricing is available for institutional, clinical, and grant-funded procurement teams.
Frequently Asked Questions
Are these specimen containers sterile?
No — they are supplied non-sterile in 72/Bag bulk packaging. For applications that require sterile containers, verify sterility requirements with your protocol before ordering.
Can these containers hold formalin or acid preservatives for environmental samples?
Yes. Polypropylene offers excellent compatibility with 10% formalin and dilute mineral acid preservatives (HCl and H₂SO₄) commonly used in tissue fixation and environmental water sampling protocols.
What is the maximum temperature these containers can withstand?
The polypropylene construction is rated to approximately 80°C, making these containers suitable for warmed reagent protocols and water-bath applications within that range.
Are larger sizes available in the same container series?
Yes. The Caplugs® Evergreen line includes 400 mL, 500 mL, and 750 mL wide-mouth PP containers (220-9400-03K, 220-9500-03K, and 220-9750-03K, respectively) for higher-volume collection and storage needs.