THERMO SCIENTIFIC 324024-0250 Nalgene Square Petg Bottles 342024-0250 Closers

( Brand: Thermo Scientific ), ( Manufacturer Part Number: 324024-0250 ), ( Model: 342024-0250 ), ( Part Type: Closer ), ( Unit Type: Unit ), ( Unit Quantity: 60 ), ( Country Of Origin: United States ), ( Intended Use/discipline: Biological Laboratory, Medical Laboratory, Microbiological Laboratory, Veterinary Medicine )

Review THERMO SCIENTIFIC Nalgene 250 Ml Square Petg Bottles No Closers

The **Thermo Scientific Nalgene 250 Square PETG Bottles with Closers (Catalog Numbers 324024-0250 and 342024-0250)** represent a premium solution for laboratories, research facilities, and industrial applications requiring durable, high-performance storage containers with exceptional clarity and chemical resistance. Engineered with **polyethylene terephthalate glycol (PETG)**, a high-impact, transparent copolymer, these square bottles combine the strength of PET with the enhanced clarity and durability of glycol-modified resin, making them ideal for storing sensitive samples, reagents, or solutions that demand both visibility and structural integrity. The **250 mL capacity** strikes a practical balance between volume efficiency and ease of handling, accommodating a wide range of liquid samples while fitting seamlessly into standard laboratory racks and storage systems. The **square design** not only maximizes space utilization in crowded workspaces but also provides a stable footprint, reducing the risk of tipping or spillage during transit or handling an essential feature in environments where stability and organization are critical.

The **screw-threaded closers** (included as part of the 342024-0250 kit) are crafted from **high-quality polypropylene**, ensuring a secure, leak-proof seal that maintains sample integrity over extended periods. The closers feature a **threaded design** that resists loosening from vibrations or accidental bumping, while their **ergonomic grip** allows for easy opening and closing with minimal effort. For applications requiring additional protection, the closers can be paired with **screw-on caps or septa** (sold separately), further enhancing versatility. The **transparency of the PETG material** enables real-time monitoring of sample levels, color changes, or contamination without the need for opening the container, which is particularly advantageous for long-term storage or experiments where sample integrity must be preserved. Additionally, the **chemical resistance** of PETG makes these bottles compatible with a broad spectrum of solvents, acids, and bases, though it is advisable to consult the manufacturer s guidelines for specific compatibility with aggressive or high-purity substances.

Beyond their functional benefits, these bottles are designed with **laboratory safety and hygiene** in mind. The smooth, non-porous surface of PETG resists bacterial growth and is easy to clean, making it suitable for applications requiring strict sterility or repeated use. The **rigid construction** of the bottles also minimizes the risk of deformation under pressure, ensuring consistent performance even when subjected to temperature fluctuations or pressure changes. For environments adhering to **GLP (Good Laboratory Practice) or GMP (Good Manufacturing Practice) standards**, the bottles **consistent quality and traceability** backed by Thermo Scientific s reputation for reliability provide peace of mind. Whether used for **sample storage, reagent preparation, or experimental workflows**, these bottles offer a robust, transparent, and user-friendly alternative to traditional glass or plastic containers, bridging the gap between functionality and clarity in demanding laboratory settings.

**Pros and Cons of Buying Thermo Scientific Nalgene 250 Square PETG Bottles (Part Numbers 324024-0250 and 342024-0250)**

### **Pros**

1. **High Clarity and Visibility** The square PETG design provides excellent visibility of contents, making it ideal for applications requiring visual inspection, such as cell culture monitoring or reagent storage.

2. **Chemical Resistance** PETG (Polyethylene Terephthalate Glycol) is resistant to a wide range of organic solvents, acids, and bases, making it suitable for laboratory and industrial use.

3. **Sterilization Compatibility** These bottles can withstand autoclaving, gamma irradiation, and ethylene oxide sterilization, ensuring compatibility with standard laboratory sterilization methods.

4. **Durability and Strength** The square design distributes stress more evenly than round bottles, reducing the risk of cracking under pressure or during handling.

5. **Reusable and Cost-Effective** Unlike single-use plastic containers, these bottles can be reused multiple times, reducing long-term disposal costs.

6. **Compatibility with Lab Equipment** The threaded caps (342024-0250) provide a secure seal, preventing contamination and spills, which is crucial for sensitive applications.

7. **Wide Temperature Range** PETG maintains structural integrity across a broad temperature range, making it suitable for both cold and heated applications.

8. **Brand Reliability** Thermo Scientific is a trusted manufacturer in laboratory and industrial plastics, ensuring consistent quality and performance.

9. **Easy to Clean** The smooth surface of PETG resists bacterial adhesion, simplifying cleaning and reducing the risk of contamination.

10. **Customizable Options** These bottles can be used with various caps and adapters, offering flexibility for different applications.

### **Cons**

1. **Higher Initial Cost** Compared to standard disposable plastic bottles, these bottles have a higher upfront cost, which may be a barrier for budget-conscious users.

2. **Weight and Bulk** PETG is denser than some disposable plastics, making shipping and storage more expensive due to increased weight.

3. **Limited Flexibility** Unlike flexible or collapsible containers, these rigid bottles cannot be compressed, which may be inconvenient for large-volume storage.

4. **Potential for Scratching** The square design and corners may be more prone to scratching during handling, which could affect clarity over time.

5. **Not Fully Biodegradable** While reusable, PETG is not biodegradable, which may be a concern for environmentally conscious users seeking sustainable alternatives.

6. **Compatibility with Certain Chemicals** Although PETG is resistant to many chemicals, prolonged exposure to highly aggressive substances (e.g., strong oxidizers) may degrade the material over time.

7. **Single-Use Alternatives May Be Faster** For applications requiring frequent replacement (e.g., some disposable labware), the reusability of these bottles may not justify the investment.

8. **Potential for Leakage Over Time** If the caps are not tightened properly or if the threads wear out, leaks can occur, especially with viscous or pressurized contents.

### **Conclusion**

Thermo Scientific Nalgene 250 square PETG bottles (324024-0250 and 342024-0250) are an excellent choice for laboratories and industrial settings requiring durable, reusable, and chemically resistant storage solutions. Their clarity, sterilization compatibility, and durability make them ideal for applications such as cell culture, reagent storage, or sample preservation. However, their higher cost and weight may not be justified for applications where disposable or flexible containers are sufficient.

### **Recommendation**

- You need a reusable, high-clarity container for long-term storage of liquids, cell cultures, or sensitive reagents.

- Your workflow involves frequent sterilization (autoclaving, irradiation) and requires chemical resistance.

- You prioritize durability and the ability to visually inspect contents without transferring samples.

- You are willing to invest in a cost-effective solution for repeated use over disposable alternatives.

- Your budget is limited, and disposable or lower-cost containers meet your needs.

- You require flexible or collapsible storage for large volumes.

- Your application involves highly aggressive chemicals that may degrade PETG over time (in which case specialized materials like glass or certain plastics may be better).

- You prioritize environmental sustainability and are open to exploring fully recyclable or biodegradable options.

For most laboratory settings where reusability, clarity, and chemical resistance are critical, these bottles are a strong recommendation. However, weigh the pros and cons against your specific application to determine the best fit.

Details:

Shape: Square. Purchase will include everything pictured. Item Specifications Information. Closure Size: 38-430mm not included.

Graduated: Y es. For Use With Application: Filling Lines. Mouth: Narrow. Color: C Lear.

Sterility: Sterile. Material ETG.: Media Bottle. Diameter: 2.3 in.

Thermo Nalgene 250 mL Square PETG Bottles, No Closers.: Media bottles without closure. Capacity: 8 oz.

part #: 3240240250 price

• $170.00

specifications plasticwarelabsuppy:

• brand: Thermo Scientific
• mpn: 324024-0250
• model: 342024-0250
• part type: Closer
• unit type: Unit
• unit quantity: 60
• country of origin: United States
• intended use/discipline: Biological Laboratory, Medical Laboratory, Microbiological Laboratory, Veterinary Medicine

returns plasticwarelabsuppy:

• policy: No Returns

general plasticwarelabsuppy:

• condition: New Open box
• Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware

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• cost: $60.26
• class: Standard

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• availability: In Stock
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• started: March 12, 2026
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