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Electron Microscopy Super Pap Pen, Small 
Supplier: Electron Microscopy Sciences 71312
New and improved. The Super PAP Pen outperforms the original PAP Pen. The Super PAP Pen may be used at temperatures as high as 120 degree F. (The old style PAP Pen worked only up to 90 degree F). With this high temperature feature, one can now use the Super PAP Pen to perform the peroxidase-anti-peroxidase method, ABC method, and Fluorescent antibodies method with satisfactory results.