MultiMax™ B-2105-L | 1000µL XL Extended Length Barrier Pipette Tips, Sterile, Graduated — 768/Pack (96/Rack, 8 Racks)

Product Description

The LIGHT LABS B-2105-L (Sorenson BioScience MultiMax™, manufacturer catalog # 34000 / SKU 2940) is a 1000µL extended length (XL/XT) barrier pipette tip — sterile, graduated, and universal fit for all standard single and multichannel pipettes. Protect your samples and achieve superior results with MultiMax™ Universal Fit Barrier Tips by Sorenson. Crafted from premium, virgin polypropylene, these tips are engineered for exceptional accuracy and precision. Extended length range: 50–1,250µL. Standard graduations at 200, 500, and 1,000µL. Sterile, RNase/DNase-free. 96 tips per hinged rack, 8 racks per pack, 768 tips per pack.

Extended Length (XL/XT) Format — Deeper Vessel Reach for 1000µL Applications The "XL" (Extended Length / XT) designation of the B-2105-L is the defining format characteristic that differentiates it from standard-length 1000µL tips. The extended length barrel allows the tip to reach deeper into tall vessels — including deep-well plates, 50mL conical tubes, reagent reservoirs, and tall media bottles — without requiring the pipette body itself to enter the vessel opening. This is particularly important for 1000µL dispensing applications where standard-length tips cannot reach the bottom of deep vessels, resulting in incomplete sample aspiration or the need to tilt and manipulate the vessel. The extended length of the B-2105-L provides comfortable, consistent reach across the full range of standard 1000µL pipetting applications.

Volume Range: 50–1,250µL — Maximum Flexibility Across the 1000µL Pipette Range The B-2105-L / 34000 covers a pipetting volume range of 50–1,250µL — significantly wider than the nominal 1000µL designation suggests. This broad range accommodates the full pipetting range of standard 1000µL pipettes (which typically operate between 100–1000µL), and extends compatibility to larger-volume pipettes operating up to 1,250µL — making the B-2105-L a versatile single-format tip for multiple pipette models across the upper volume range.

MultiMax™ Universal Fit — Compatible with All Standard Pipettes MultiMax™ Universal Fit Barrier Tips are designed to fit all major brands of single and multichannel research-grade pipettes — including Eppendorf, Gilson, Thermo Fisher, Rainin, Brand, and other standard pipette platforms. Universal fit is achieved through a precisely engineered tip cone geometry that forms a reliable, leak-free seal across the range of cone diameters used by major pipette manufacturers — without requiring brand-specific tip variants or adapters.

Polyethylene Barrier Filter — Aerosol and Cross-Contamination Protection Your pipettor is protected from aerosol contamination by an inert, polyethylene filter matrix that takes potential contaminants out of the pipettor airstream. The polyethylene filter matrix of the B-2105-L barrier is pure polyethylene — free from additives, particulates, or contaminants that can alter sample integrity. The barrier physically blocks aerosol droplets and liquid from entering the pipette body during aspiration and over-pipetting events — protecting both the pipette and subsequent samples from cross-contamination. Superior Recovery Barrier Tips eliminate the potential risk of cross-contamination of discrete samples, and minimize false signals after enzymatic reactions and amplification of DNA and RNA templates. Should over-pipetting occur, your sample can be safely and easily retrieved.

Graduated Tips — Three Visual Reference Points for Accurate Pipetting Standard graduations at 200, 500, and 1,000µL are molded into the tip wall — providing three visual volume reference points that allow the operator to confirm volume uptake at a glance without reading the pipette display. Graduated tips provide visible reference points with exceptional clarity. The graduation markings maintain optical clarity throughout use and do not fade, smear, or wash off during standard laboratory handling.

Hinged Racks — Convenient Access and Reloading The B-2105-L is supplied in hinged racks of 96 tips — 8 hinged racks per pack, 768 tips per pack. The hinged rack design allows single-handed rack opening at the biosafety cabinet, protects unused tips from contamination after partial use, and supports standard rack reload systems for high-throughput pipetting workstations. The hinged rack is compatible with all standard pipette tip reload systems.

Sterile — RNase/DNase-Free, Pyrogen-Free Sterile. Certified RNase/DNase Free. Certified Pyrogen Free. Every B-2105-L tip is sterilized and certified free of RNase, DNase, and pyrogens — qualifying it for RNA isolation, PCR setup, cell culture applications, and any workflow where tip material contamination could affect results.

Compatible Replacement — Cross-Reference Guide

The LIGHT LABS B-2105-L (Sorenson 34000) is a direct compatible replacement for 1000µL extended length barrier pipette tips from several major manufacturers:

• Eppendorf® 0030077598 — Eppendorf ep Dualfilter T.I.P.S. 1000µL, sterile
• Gilson® F167300 — Gilson PIPETMAN Diamond 1000µL filter tip, sterile
• Thermo Fisher ART® 2079G — ART 1000µL extended barrier tip, sterile, graduated
• Rainin HR-1000F — Rainin 1000µL extended filter tip, sterile
• Brand® 701891 — Brand 1000µL filter tip, sterile

Competitor brand names and catalog numbers are referenced for cross-referencing purposes only. Compatibility should be verified for your specific pipette model and protocol.

Complete LIGHT LABS MultiMax™ Barrier Pipette Tip Family:

Key Features

• LIGHT LABS Cat # B-2105-L / Sorenson Cat # 34000 / MultiMax: 2940
• 1000µL extended length (XL/XT) barrier pipette tip
• Volume range: 50–1,250µL
• MultiMax™ universal fit — compatible with all major single and multichannel pipettes
• Pure polyethylene barrier filter — aerosol and cross-contamination protection
• Graduated — 200, 500, and 1,000µL reference marks
• Extended length barrel — deeper vessel reach for tall vessels and deep-well plates
• Sterile
• Certified RNase/DNase-free
• Certified Pyrogen-free
• Hinged rack — 96 tips per rack
• 8 racks per pack
• 768 tips per pack

Supported Applications RNA isolation and nucleic acid extraction at 1000µL scale, PCR and qPCR master mix preparation, cell culture media dispensing, reagent transfer from tall vessels and deep-well plates, serial dilutions at 1000µL scale, protein and enzyme assays requiring aerosol protection, ELISA preparation and dispensing, next-generation sequencing library preparation, clinical diagnostic pipetting requiring barrier protection, and any 1000µL pipetting application requiring extended length reach, barrier contamination protection, and low-binding sample recovery.

Technical Specifications