Borosilicate Durham Tubes

• Borosilicate Durham tubes manufactured of premium quality borosilicate glass
• Consist of smooth well-rounded bottoms with no irregularities, and fire polished tops to eliminate rough edges
• Walls and bottoms are of uniform thickness and tubes are of a consistent length
• Excellent chemical resistance against sodium leaching
• Shrink wrapped trays protect against breakage and contamination with tubes remaining in constant alignment