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

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

Eisco Labs Polypropylene Test Tube Rack, Holds 40 20mm Tubes

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

Eisco 12 Hole Test Tube Rack, Holds (6) 30mm and (6) 15mm Diameter Test Tubes

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

Eisco Labs Test Tube Rack, Holds 12 Tubes, 10.25" Wide - Polished Beech Wood

Eisco Labs Wooden Test Tube Rack, 12 Tube Capacity, 7/8" (22mm) Holes