Rainin Pipette Tips 250 ul Pack of 100 Refill Racks with 96 Tips Each

Rainin 30389299 Green-Pak SpaceSaver Stacked Refills – 250 µL, LTS, Non-Sterile

The Rainin 30389299 (Legacy/Catalog SKU: GPS-L250) is a high-performance 250 µL pipette tip nesting system engineered exclusively for Rainin pipettes featuring the LiteTouch System (LTS). Supplied in the eco-conscious Green-Pak™ SpaceSaver™ stacked configuration, this architecture bundles 10 nested layers of 96 tips inside a singular, ultra-compact PET sleeve. This configuration allows technicians to rapidly dispense an entire 96-well grid into an empty, pre-existing hinged rack in seconds without manual alignment or tip handling. Molded from 100% virgin, bio-inert polypropylene under automated cleanroom conditions, these non-filtered tips feature Rainin's signature FinePoint™ thin-walled geometry and are certified under strict BioClean Ultra™ guidelines to ensure baseline sample purity.

Technical Performance and Design

• LiteTouch System (LTS) Integration: Tailored to interface with the unique cylindrical nozzle and positive-stop mechanism of Rainin LTS pipettes. This profile creates a perfect airtight seal with minimal insertion force, slashing cumulative tip-ejection strain by up to 70% to prevent hand fatigue.

• SpaceSaver™ Nested Architecture: Eliminates the extreme physical bulk of standard retail tip trays by stacking 10 distinct layers vertically. The outer PET sleeve acts as a structural deployment guide; users simply line it up over an empty rack base and compress the stack downward to load 96 tips instantly.

• FinePoint™ Apex Orifice: The ultra-thin, highly flexible walls taper down to a narrow, sharp-edged baseline orifice. This shape drastically limits fluid surface tension at the tip boundary, optimizing clean sample touch-off and full volumetric release.

• BioClean Ultra™ Material Validation: Every manufacturing lot is cleanroom-audited and strictly certified free of detectable biological contaminants (DNA, DNase, RNase, ATP, proteases, endotoxins) and synthetic chemical slip agents, protecting delicate enzymatic master mixes.

Product Specifications

• Catalog Number / MPN: 30389299 (Legacy Family: GPS-250 / GPS-L250)

• Manufacturer: Mettler Toledo Rainin

• Maximum Volumetric Capacity: 250 µL

• Tip Technology: LiteTouch System (LTS)

• Packaging Configuration: SpaceSaver Stacked Refill Towers

• Filter Matrix: No (Non-Filtered)

• Sterility Status: Non-Sterile (Fully Autoclavable at 121°C inside an empty rack)

• Total Refill Case Count: 960 Tips per individual SpaceSaver brick (10 nested layers of 96 tips)

Key Benefits & Applications

• 80% Physical Plastic Waste Reduction: Drastically lowers the solid plastic footprint and transport mass leaving the facility compared to purchasing single-layer racked tips, aligning perfectly with corporate green-initiative compliance.

• Assay Miniaturization & Dosing: The highly compliant polymer structure delivers highly consistent, repeatable fluid transfers, critical for running sensitive micro-volume ELISA, qPCR setups, and compound screenings.

• Continuous Autoclave Cycling: Arriving clean and non-sterile, the polypropylene tips can be snapped into reusable Rainin hinged boxes and autoclaved at 121°C (for 20 minutes) to generate a customized, validated sterile barrier in-house.

• Benchtop Grid Optimization: The ultra-narrow, space-saving sleeve footprint reclaims valuable workspace and storage shelf area inside crowded genomics clean-rooms or clean-air laminar hoods.

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