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Bel-Art Scienceware Grid Set for Switch-Grid Test Tube Rack, Yellow Color, 25-30mm Tubes (Pack of 4)

Switch-Grid Test Tube Rack system is more compact and less expensive than purchasing multiple racks

Switchable grids allow user to utilize two tube sizes in one rack; change grids in one side or both (2 grids needed per side)

Yellow grids fit 25mm to 30mm tubes; rack capacity: 12 tubes