Compression Packing Seal, Thickness 3/4 in, Overall Length 25 ft, Material Ceramic Fiber, Color White, Edge Shape Square, Minimum Temperature Not Applicable, Maximum Temperature 2,300 Degrees F, Standards Not Applicable, Compatible Pump Not Applicable, Density 75 lb/cu ft, Features Seals are Flexible and Conform to Uneven Surfaces, Square 3/4 in