Compression Packing Seal Carbon Packing with PTFE Square 1/8 In. Length 25 Ft Dull Gray Color Ambient Temp Range -400 to 600 F Max Temp in Steam 1200 F Max Pressure for Pumps 2250 PSI Max Pressure for Valves 3500 PSI Max Shaft Speed 2000 Ft/Min pH Range 1 to 14 For Use In Pumps/Valves Application Designed for Papermill and Chemical Equipment