Globe Scientific TUFFBLOK 4-Way Tube Rack (456940 series) holds four different tube sizes in one heavy-duty polypropylene rack: microcentrifuge tubes (1.5/2.0mL), 12/13mm tubes, 15/17mm tubes, and 50mL conical centrifuge tubes. Instead of four separate single-size racks scattered across the bench, one TUFFBLOK puts every tube size within arm's reach. Multiple racks link together side-by-side using integrated connection points — no adapters, no tools — to create custom-width workstations that match your workflow.
Four Tube Sizes, One Reach
A molecular biology extraction protocol touches 1.5mL microtubes, 15mL culture tubes, and 50mL centrifuge tubes in rapid succession. A clinical chemistry bench has blood collection tubes (12/13mm), chemistry tubes (15/17mm), and centrifuge tubes (50mL) in use simultaneously. The TUFFBLOK places all four tube sections in a single ergonomic footprint — grab any tube size without reaching to a different rack, a different shelf, or a different bench area. This is especially valuable inside biosafety cabinets where bench space is restricted and reaching outside the hood breaks the air curtain.
Link Together for Custom Workstations
Each TUFFBLOK connects to adjacent racks using molded interlocking points. Link two for double capacity, three for a full extraction station, or more for a shared processing bench. The linked assembly is rigid — no wobbling or separation during use. Unlink to reconfigure when protocols change. The TUFFBLOK XL (456945 series) provides larger capacity per section and links to standard TUFFBLOK racks interchangeably.
Specifications
Tube Sizes: Microcentrifuge (1.5/2.0mL), 12/13mm, 15/17mm, 50mL conical
Material: Polypropylene (PP), autoclavable
Linkable: Yes (tool-free)
Colors: Assorted, Blue, Natural, Green, Orange, Pink, Yellow
For expanded capacity: see TUFFBLOK XL (456945). For lidded version: see TUFFBLOK Rectangular (456950).
