300 µL Non-Filtered Tips & Refills Compatible with Opentrons OT-2

300 µL Non-Filtered Pipette Tips and Refills for Opentrons OT-2

Puretest 300 µL non-filtered tips are designed for compatible Opentrons OT-2 P300 GEN2 workflows requiring a medium-volume range and an unobstructed fluid path. Complete racks and refill-style configurations support both ready-to-load operation and reduced packaging consumption.

The 300 µL non-filtered format is the full-capacity OT-2 option for P300-class transfers. Consistent tip geometry, rack registration and orifice molding help support multichannel pickup and reliable liquid handling across approximately 5–300 µL.

Important: These independent compatible tips require qualification with the exact rack or refill base, OT-2 hardware, P300 pipette and protocol before routine use.

Product Highlights

• 300 µL nominal capacity: approximately 5–300 µL working-volume target.
• Non-filtered design: open fluid path for routine transfers that do not require aerosol protection.
• Rack or refill: choose complete 96-tip racks or compatible refill inserts.
• P300 workflow fit: for OT-2 P300 GEN2 single-channel and 8-channel pipettes.
• Clear polypropylene: non-conductive, visually inspectable fluid path.
• Bulk procurement support: samples, documentation, recurring supply and OEM/private-label options.

Tip Structure and Functional Design

The upper cone is designed to form a repeatable mechanical seal while the longer shaft and 300 µL internal envelope support P300-class transfers. A controlled distal orifice helps limit droplet variation and residual liquid. Without a filter, correct aspiration height and volume limits are especially important for protecting the pipette and maintaining consistency.

Complete racks provide matched components, while refill inserts depend on correct seating in the approved base. Qualification should cover full and partial racks, single- and multichannel pickup, ejection, deck clearance and representative liquid-handling steps.

Technical Specifications and Selection Notes

Platform, Pipette and Rack Compatibility

Filtered, Non-Filtered and Packaging Configurations

Select a complete rack for ready-to-load use or a refill insert when the base has already been qualified. For contamination-sensitive P300 workflows, evaluate the separate 200 µL filtered configuration and confirm that its lower maximum capacity fits the method.

Quality and Configuration Control

• Controlled molding and dimensional inspection support repeatable nozzle sealing, pickup height and ejection behavior across the 96-position rack.
• Transparent polypropylene provides direct visual confirmation of liquid movement and residual droplets; filtered versions include a hydrophobic barrier selected for the intended format.
• Sterile and purity-controlled supply must be matched to the exact item code and confirmed through current specification and lot documentation.
• Lot identification, packaging integrity, dimensional drawings, material declarations and available quality documents can be supplied for the confirmed ordering configuration.
• Sterility, purity, filter, packaging and shelf-life claims apply only when they are listed on the current quotation, specification sheet and lot documentation.

Application Guide

• Medium-volume reagent transfer
• Plate filling and assay setup
• Sample dilution and normalization
• Buffer exchange workflows
• Automated mixing and serial dilution

Recommended Qualification Workflow

1. Confirm the platform: identify the exact robot, pipette model, channel count and installed software or protocol definition.
2. Select the smallest suitable capacity: choose a tip whose qualified working range covers the intended transfer volume.
3. Confirm the configuration: filtered or non-filtered, rack or refill, sterile or non-sterile, and required purity documentation.
4. Run mechanical checks: evaluate full-rack pickup, nozzle sealing, tip height, labware clearance and clean ejection.
5. Run liquid-handling checks: confirm aspiration, dispense, residual volume, accuracy, precision and contamination control with representative liquids and labware.
6. Lock the approved item: record the final item code, tip configuration, rack definition and validated protocol settings before routine procurement.

Ordering Information

To receive the correct quotation, specify: OT-2 model, P300 pipette and channel count, complete rack or refill, base information, sterile/purity requirements, carton quantity and annual demand. Puretest supports evaluation samples, distributor supply, recurring bulk orders and OEM/private-label programs for confirmed configurations.

Frequently Asked Questions

Why is the non-filtered format 300 µL?

It is the full-capacity non-filtered option for P300-class OT-2 workflows, while the filtered option is commonly specified at 200 µL.

Can refills be used in any rack base?

No. Confirm the exact base and refill combination and validate pickup height and deck registration.

When should I choose a filtered tip?

Choose the 200 µL filtered format when aerosol protection is required and its working-volume range covers the method.

Can these tips be used on Flex?

No. OT-2 and Flex use different tip and rack interfaces.

Do you offer samples?

Yes. Include your robot, pipette, rack/base and target volumes with the request.

Request Samples, Documents or a Quotation

Send your robot model, pipette model, channel count, target volume, filtered/non-filtered preference, rack/refill preference, sterility requirement and estimated annual demand. We will match the most appropriate configuration and provide available qualification documents.

Contact Puretest for an evaluation sample or quotation

Opentrons and the related product names are trademarks of their respective owner. Puretest is an independent compatible-consumables supplier and is not affiliated with or endorsed by Opentrons Labworks, Inc.