Eisco Labs Polypropylene Test Tube Rack, Holds 90 13mm Tubes

Eisco Labs Test Tube Rack - Holds 12 Tubes, 18mm Test Tubes - Polypropylene

Eisco Labs Polypropylene Test Tube Rack, Holds 60 16mm Tubes

Eisco Labs Economy Test Tube Rack, Holds 6 15mm Test Tubes - Unfinished Hardwood

Eisco Labs Test Tube Rack, 9 Inch - Polypropylene - Holds 12 Tubes

Eisco Labs Test Tube Stand, 25mm Diameter Holes for 6 Tubes - Polypropylene

Wire Test Tube Rack - Holds 40 Tubes with 18-20mm Diameter - Epoxy-Coated Steel

Blue Plastic Test Tube Peg Drying Rack Holds 50 16Mm Test Tubes - Labs