CHEMGLASS CG-1405-10 Coarse Frit Glass Pressure Filter Ring 150ML Funnel 30 Joint

( Brand: Chemglass ), ( Manufacturer Part Number: CG-1405-10 ), ( Part Type: Pressure Ring Filter Joint ), ( Intended Use/discipline: Biological Laboratory, Dental Laboratory, Microbiological Laboratory, Medical Laboratory, Physical Laboratory ), ( Country Of Origin: United States ), ( Unit Type: Unit ), ( Additional Information: Surplus Laboratory Consumable Supplies )

Review CHEMGLASS 150ml Coarse Frit Glass Pressure Filter Funnel #30 O ring Joint

The **Chemglass CG-1405-10 150 mL Coarse Frit Glass Pressure Filter Funnel with 30 O-Ring Joint** is a precision-engineered laboratory accessory designed for efficient and reliable filtration under vacuum or pressure conditions. Crafted from high-quality borosilicate glass (Type 1, meeting or exceeding USP/EP/JP standards), this funnel combines durability with exceptional clarity, allowing for precise monitoring of filtration processes. The **coarse frit** (rated at approximately 10 15 m nominal pore size) ensures rapid flow rates while effectively retaining particulate matter, making it ideal for applications such as crystallization, drying, and the removal of fine solids from liquids. The **30 O-ring joint** (standardized to conform with ISO and ASTM specifications) provides a secure, leak-proof connection to compatible glassware, including filter flasks, vacuum pumps, or pressure filtration setups, ensuring consistent performance across a variety of laboratory protocols. Its **150 mL capacity** strikes a practical balance between throughput and workspace efficiency, accommodating moderate-scale filtrations without excessive bulk. The funnel s robust construction minimizes the risk of breakage during handling, while its smooth, polished surfaces facilitate easy cleaning and sterilization critical for maintaining sterility in pharmaceutical, biochemical, or analytical research. Whether used in routine laboratory procedures or specialized applications like solvent recovery or sample preparation, this funnel delivers dependable filtration performance with the precision and reliability demanded by modern scientific workflows.

**Pros and Cons of buying a Chemglass CG-1405-10 (150 mL Coarse Frit Glass Pressure Filter Funnel with 30 O-Ring Joint)**

### **Pros**

1. **Durability and Material Quality** Made from borosilicate glass (likely Type 1 or 3), this funnel is chemically resistant to most acids, bases, and organic solvents, making it suitable for harsh laboratory conditions. The glass is also heat-resistant, ensuring longevity with proper care.

2. **Precision Filtration** The coarse frit (typically 10 15 m pore size) is effective for filtering fine solids from liquids, including precipitates, suspensions, and crude reaction mixtures. It provides better retention than paper filters while allowing faster flow rates than fine frit funnels.

3. **Pressure Filtration Capability** The design allows for vacuum or pressure filtration, significantly speeding up filtration processes compared to gravity filtration. This is particularly useful for large-volume or time-sensitive procedures.

4. **Compatibility with Standard Lab Equipment** The 30 O-ring joint (standard ground glass joint) ensures compatibility with most laboratory glassware, including filter flasks, adapters, and vacuum systems. This makes it versatile for integration into existing setups.

5. **Reusability** Unlike disposable paper filters, this glass funnel can be cleaned and reused multiple times, reducing waste and long-term costs. It can be washed with solvents, water, and mild detergents (though avoid abrasives).

6. **Clarity and Safety** Glass is transparent, allowing visual confirmation of filtration progress and residue. Unlike plastic alternatives, it does not leach contaminants into samples.

7. **Wide Application Range** Suitable for organic synthesis, inorganic chemistry, biochemistry, and analytical procedures where medium-range filtration is required.

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### **Cons**

1. **Fragility** Glass is prone to breakage if dropped or subjected to thermal shock (e.g., rapid heating or cooling). This requires careful handling, especially in busy labs or with inexperienced users.

2. **Maintenance and Cleaning** Glass funnels can be difficult to clean thoroughly, particularly if residues clog the frit. Stubborn deposits may require ultrasonic cleaning or mechanical scrubbing, which can be time-consuming. Some organic or inorganic residues may adhere tightly and require specialized solvents or soaking.

3. **Cost** Compared to disposable paper filters or plastic alternatives, glass funnels are more expensive upfront. However, their reusability may offset costs over time for frequent users.

4. **Potential for Contamination** If not cleaned properly, glassware can harbor trace amounts of previous samples, leading to cross-contamination. This risk is mitigated by thorough cleaning but requires diligence.

5. **Limited Pore Size Flexibility** The coarse frit is not ideal for filtering very fine particles (e.g., colloidal suspensions or nanoparticles). For such applications, a fine frit or alternative filtration methods (e.g., membrane filters) may be necessary.

6. **Sealing Reliability** The O-ring joint relies on a rubber or silicone gasket, which can degrade over time with exposure to certain solvents (e.g., ketones, strong oxidizing agents) or prolonged use. The gasket may need replacement periodically, adding to maintenance costs.

7. **Size Limitations** The 150 mL capacity may be insufficient for very large-scale filtrations. Larger funnels (e.g., 250 mL or 500 mL) would be required for bulk processes.

8. **Not Ideal for High-Pressure Applications** While designed for pressure filtration, extreme pressure can stress the glass or joint, risking leaks or failure. Always use appropriate pressure regulators.

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### **Conclusion**

The **Chemglass CG-1405-10** is a high-quality, versatile tool for medium-range pressure filtration in laboratory settings. Its borosilicate glass construction, durability, and compatibility with standard lab equipment make it a reliable choice for routine and intermediate-scale filtrations. The ability to reuse it and its resistance to most chemicals add to its value, especially in research or teaching environments where cost efficiency and performance are critical.

However, its fragility, maintenance requirements, and higher initial cost may deter users who prioritize convenience or work with extremely fine or abrasive materials. For labs with limited budgets or those handling delicate samples, disposable alternatives or plastic funnels might be considered, though they lack the durability and chemical resistance of glass.

- You require a durable, reusable filtration tool for medium-range (coarse) filtration under pressure.

- Your work involves organic synthesis, inorganic chemistry, or other applications where glassware compatibility is essential.

- You are willing to invest in long-term equipment that reduces waste and maintains consistency.

- Your lab has protocols for proper handling, cleaning, and storage of glassware.

- You frequently handle very fine particles or colloidal suspensions (opt for a fine frit or membrane filter).

- Your workflow involves high-volume filtrations where larger funnels would be more practical.

- Budget constraints or safety concerns (e.g., risk of breakage) make glass impractical.

- You require disposable or low-maintenance options for one-time use.

For most academic or industrial labs performing routine filtrations, this funnel is a worthwhile investment. Pair it with appropriate safety measures (e.g., protective gloves, eyewear) and cleaning procedures to maximize its lifespan and performance.

Details:

New O-Ring included. Some signs of use / staining on frit. GSR veers 1730 GS 9.9.4 1730 Used item in good condition. See pictures for details.

No chips or cracks throughout.

part #: cg140510 price

• $79.99

specifications plasticwarelabsuppy:

• brand: Chemglass
• mpn: Cg-1405-10
• part type: Pressure Ring Filter Joint
• intended use/discipline: Biological Laboratory, Dental Laboratory, Microbiological Laboratory, Medical Laboratory, Physical Laboratory
• country of origin: United States
• unit type: Unit
• additional information: Surplus Laboratory Consumable Supplies

returns plasticwarelabsuppy:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller
• method: Money back

offer plasticwarelabsuppy:

• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: April 3, 2026
• sold: 0

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seller plasticwarelabsuppy:

• # reviews: 7671
• city: Cotati, California
• rating: 99.9%

general plasticwarelabsuppy:

• condition: Used
• Medical, Lab Dental Supplies > Glassware Plasticware > Other Medical Lab Glassware

shipping plasticwarelabsuppy:

• cost: $0.00
• transit: 7-13 Days
• type: Fixed
• service: USPS First Class, FedEx 2Day, FedEx Standard Overnight
• carrier: USPS, FedEx
• class: Standard, Expedited, One-day

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