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BIPEE Plastic Test Tube Rack for 25mm Tubes, 24 Well, White,Detachable (24 Hole) : Amazon.ca: Industrial & Scientific
Karter Scientific 208V2 Plastic Test Tube Rack for 12/13mm Tubes, Holds 50, Detachable : Amazon.ca: Industrial & Scientific
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IGUOHAO Test Tube Rack 6 Holes Lab Tube Holder Plastic Test Tube Stand Shelf for Lab School Supplies, Pack of 3 (Assorted Colors) | Walmart Canada
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SP Bel-Art | SP Bel-Art No-Wire Test Tube Rack; For 25-30mm Tubes, 21 Places, White | SP Bel-Art
Snap-Together 12mm to 21mm Test Tube Racks | Lab Scientific Equipment | Medical and Laboratory Supplies | Philippines
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20 holes plastic test tube rack testing tubes holder storage stand lab supp.'. | eBay