Cole-Parmer StableTemp Single Block for Standard Test Tubes, 25mm Tubes

Modular blocks are constructed from a solid anodized aluminum block. The close contact of tubes-to-block walls allow for maximum heat retention. Each block has a thermometer well for measuring block temperature.
Test Tube Blocks are single blocks. Blocks are available for test tube sizes from 6mm to 35mm in diameter.

Standard round bottom test tube block holds 25mm tubes. Single block