750 mL Wide-Mouth Specimen Containers with Screw Caps — Polypropylene, Natural, 50/Bag (220-9750-03K)
These 750 mL polypropylene specimen containers feature a threaded wide-mouth neck and screw cap, offering large-format collection capacity for environmental sampling, composite food testing, soil and sediment work, and bulk reagent preparation. Supplied non-sterile in 50/Bag packaging, the natural PP construction is compatible with a broad range of aqueous and organic reagents, including formalin and acid preservatives commonly used in environmental and clinical workflows. Part number 220-9750-03K is a Caplugs® Evergreen product Made in USA.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 220-9750-03K |
| Capacity | 750 mL |
| Closure | Threaded wide-mouth neck with screw cap |
| Material | Polypropylene (PP) |
| Color | Natural |
| Thermal Rating | ~80°C (warmed reagent protocols / water bath) |
| Sterility | Non-Sterile |
| Pack Size | 50/Bag |
| BPA / Phthalate / Latex | BPA-Free, Phthalate-Free, Latex-Free |
| FDA-Compliant Resin | Yes |
| Country of Origin | USA |
Applications
- Large-volume water sampling: 750 mL capacity supports regulatory field sampling for low-concentration contaminant analysis where smaller containers are insufficient
- Composite environmental sampling: Wide-mouth opening facilitates pooling of multiple-site field samples into a single container
- Bulk soil and sediment collection: Accommodates large sediment core and matrix samples for contaminant screening
- Composite food matrix collection: Wide bore allows direct loading of large food portions for food safety and quality testing
- Bulk reagent and buffer preparation: PP construction tolerates a broad pH range and organic reagents, making these containers suitable for large-batch chemistry and media lab work
- Sample storage: Threaded screw cap provides a secure closure for refrigerated or shelf storage of large sample volumes
- Laboratory waste collection: Wide-mouth 750 mL format handles high-volume liquid or solid waste streams efficiently
Chemical Resistance
| Reagent / Condition | Compatibility |
|---|---|
| Aqueous buffers / saline (pH 2–12) | Excellent |
| Formaldehyde / formalin (10%) | Excellent — full PP compatibility with formalin preservatives |
| Dilute HCl / H₂SO₄ (<10%) | Excellent — compatible with standard acid preservatives for environmental sampling |
| Methanol / acetonitrile | Excellent — full organic solvent compatibility at standard use concentrations |
| Dilute acids and bases | Excellent |
| Ethanol (<70%) | Good — short-term contact |
| Chlorinated solvents (chloroform, DCM) | Not recommended |
| Aromatic solvents (toluene, xylene) | Not recommended |
Quality & Procurement
Made in USA, these Caplugs® Evergreen specimen containers are manufactured from FDA-compliant, BPA-free, phthalate-free, latex-free polypropylene resin under ISO 9001 quality management. The wide-mouth threaded design accepts a broad range of cap accessories and provides direct large-bore access for field and laboratory collection events. LabSupplies.com is an authorized dealer shipping from USA inventory, typically same business day for stocking items, with tiered pricing available for high-volume institutional, environmental testing, and food safety accounts. Laboratories requiring smaller formats may also consider the 250 mL (220-9250-03K), 400 mL (220-9400-03K), or 500 mL (220-9500-03K) siblings in the same PP Natural series.
Frequently Asked Questions
Are these specimen containers sterile?
No — they are supplied non-sterile in 50/Bag packaging. For applications requiring sterile containers, contact your LabSupplies.com representative to inquire about sterile options within the Caplugs® Evergreen line.
Can these containers hold formalin or acid preservatives used in environmental sampling?
Yes. Polypropylene has excellent resistance to formaldehyde/formalin and dilute inorganic acids such as HCl and H₂SO₄, which are standard preservatives in water and environmental sample collection. The threaded screw cap provides a secure seal to prevent leakage during transport.
What is the maximum temperature these containers can handle?
The polypropylene construction carries a thermal rating of approximately 80°C, making these containers suitable for warmed reagent protocols and water bath applications within that range. They are not rated for autoclave sterilization at 121°C.
Are smaller versions of this container available?
Yes — the same PP Natural wide-mouth threaded container series is available in 250 mL (220-9250-03K, 72/Bag), 400 mL (220-9400-03K, 60/Bag), and 500 mL (220-9500-03K, 60/Bag) formats for workflows where the 750 mL capacity exceeds the required volume.