LTS Pipette Compatible Tips: What They Are and How to Source the Right Ones

If your lab uses Rainin LTS pipettes, you already know the frustration: standard universal tips simply do not fit. The LTS system uses a proprietary bayonet-style locking mechanism that requires a tip engineered specifically for it — and sourcing quality LTS-compatible tips at a reasonable cost has historically meant going back to the original brand.

How the LTS System Works

LTS stands for Lite Touch System, a design introduced by Rainin to reduce the force required to attach and eject pipette tips. Instead of the friction-cone fit used by standard pipettes, LTS pipettes use a shorter shaft with a locking ring that clicks into the tip's collar.

The result is a noticeably lighter attach-and-eject experience, which reduces repetitive strain during high-volume pipetting sessions. For labs processing hundreds of samples daily, this ergonomic advantage is meaningful.

The trade-off is exclusivity: only tips manufactured to the LTS specification will seat properly on an LTS pipette. Use a standard tip, and you get a poor seal, inaccurate volume delivery, or tips that fall off mid-dispense.

What Makes an LTS-Compatible Tip Different?

An LTS-compatible tip replicates the bayonet collar geometry of the original Rainin design, allowing it to lock onto LTS pipette shafts with the same light-touch feel as the branded version.

Beyond the fit mechanism, a quality LTS-compatible tip should meet the same performance standards as any research-grade pipette tip:

1. Manufactured from virgin polypropylene (PP) with no recycled material

2. Certified RNase-free, DNase-free, DNA-free, pyrogen-free, and ATP-free

3. Sterile options available via radiation sterilization

4. Consistent wall thickness for accurate volume delivery

5. Available with or without an aerosol filter

The filter option is particularly important for LTS users working in PCR, qPCR, or with infectious or volatile samples — the filter prevents aerosol from entering the LTS pipette barrel, protecting both the instrument and downstream reactions.

LTS-Compatible Tips vs Rainin OEM: What's the Real Difference?

The honest answer: for most applications, very little — provided you source from a manufacturer with proper dimensional tolerances and quality certifications.

The practical consideration is dimensional precision. A tip that fits loosely or requires excess force to attach creates the same problems as an incompatible tip. Always request samples before committing to a bulk order, and test seal integrity at your working volumes before switching.

Available Formats: Matching the Right Tip to Your Workflow

LTS-compatible tips are available in a range of configurations to match different pipetting applications:

Standard LTS tips — For routine aqueous solutions, buffer transfers, and general bench work. Available in 20 µL, 200 µL, and 1000 µL formats to cover the full Rainin LTS single-channel and multichannel range.

Filtered LTS tips — For PCR, qPCR, RNA work, and any application where aerosol protection is required. The hydrophobic filter prevents liquid breakthrough and protects the pipette barrel.

Low retention LTS tips — For viscous solutions, proteins, DNA samples, and expensive reagents where minimizing wall adhesion is critical. Combines the LTS fit with a hydrophobic-modified inner surface.

Multichannel-compatible formats — Available in rack packaging designed for 8-channel and 12-channel LTS multichannel pipettes, with tip spacing matched to standard 96-well plate formats.

Packaging Options

PakGent LTS-compatible tips are available in three formats:

Rack — Pre-loaded in 96-well format racks for sterile, one-touch tip loading. Each rack is sealed to maintain sterility until opened. Refillable rack systems reduce plastic waste in high-throughput labs.

Refill — loose tips supplied in resealable bags for reloading existing racks. More economical per tip for labs that already have a rack inventory.

Bulk — Non-racked tips supplied in bags for labs where tip loading is not a sterility concern or where a different loading method is used.

PakGent LTS Pipette Compatible Tips

PakGent Bio manufactures a full range of LTS-compatible tips across standard, filtered, and low retention configurations, available in Rack, Refill, and Bulk packaging.

All tips are manufactured in ISO Class 7 and Class 8 cleanrooms, certified RNase-free, DNase-free, DNA-free, pyrogen-free, and ATP-free, and comply with the ISO 13485:2016 quality management system. Materials conform to USP Class VI requirements.

OEM and custom branding options are available for distributors and purchasing organizations with private-label requirements.