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. 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.
