Chemglass Life Sciences OPT100 Round Bottomed Flask Reaction Block, 100mL 

OPT100 Round Bottomed Flask Reaction Block, 100mL. OptiTherm aluminum reaction / heating blocks provide a SAFE and cost effective solution for replacing your existing oil baths and heating mantles. The innovative PTFE shield on the unit reduces the exterior exposed surface temperature by as much as 100C. For example the PTFE shield would be approximately 80C on a 100mL round bottom flask that is heated to 180C.Three different OptiTherm™ blocks are available. The OPT100 is used for 100mL round bottom flasks. Each block can be used with other corresponding inserts. The anodized aluminum flask inserts are color coded for easy identification. Designed to fit directly on 135mm diameter circular top hot plate stirrers.PLEASE NOTE: FLASK INSERTS MUST BE PURCHASED SEPARATELY.** US Patent Number 7,494,267