Selecting the right pipette tips is crucial for achieving accurate and precise liquid handling. While universal and Rainin branded pipette tips look similar, there are some important differences to consider.

Universal Pipette Tips Overview

Universal pipette tips are designed to fit a wide variety of pipette models from leading manufacturers.

Key Features of Universal Tips

• Made of virgin polypropylene or polyethylene
• Textured stem with molded ribs for secure sealing
• Thin walls and tapered design
• Range of sizes from 10 μl to 5 ml
• Bulk and racked tip options
• Can be non-sterile, sterile, or sterile/filtered

Their generalized design makes them compatible with most single and multi-channel pipettes.

Rainin Pipette Tips Overview

Rainin pipette tips are engineered specifically to match Rainin pipettes.

Key Features of Rainin Tips

• Made of medical grade polypropylene
• Extended tip length for secure sealing
• Thin-walled, tapered design
• 10 μl to 5 ml sizes
• Color-coded by volume
• Bulk or racked options
• Non-sterile or sterile options

The long tip design ensures a perfect fit and seal with Rainin LTS and XLS pipettes.

Fit and Seal

Universal tips are designed for broad compatibility across pipette brands. They may not seal tightly on some models.

Rainin tips provide a perfect customized fit and reliable seal on Rainin pipettes. However, they are not compatible with other pipette brands.

Accuracy and Precision

With a secure seal, Rainin tips provide excellent accuracy and precision when used with matched Rainin pipettes.

Universal tips can achieve similar performance if confirmed to fit and seal adequately on a given pipette model.

Consistency

Both tip types deliver reliable consistency when manufactured under strict quality control standards.

Look for ISO certification of facilities and production processes to ensure batch-to-batch uniformity.

Special Options

Universal tips offer low retention, low binding, filtered, and extra long options for specialized applications.

Rainin focuses more on standard and sterile tip designs in different sizes rather than special configurations.

Rack Compatibility

Universal tips come in racks to fit most common pipette tip holders.

Rainin tips come in racks specifically designed for Rainin pipettes.

Price

Universal tips tend to be more affordable than Rainin branded tips.

However, both offer good value for performance quality.

Availability

Universal tips from top brands are widely available through laboratory suppliers.

Rainin tips may require purchasing directly from the manufacturer.

Summary

For use with Rainin pipettes, Rainin tips are ideal to ensure tight sealing and prevent calibration issues.

For general use across pipette models, high-quality universal tips provide flexibility and value.

Focus on an ISO-certified tip manufacturer using virgin resin and precision molding for reliability.