Compression Packing Seal Flexible Graphite Packing Square 1/8 In. Length 25 Ft Shiny Gray Color Ambient Temp Range -400 to 850 F Max Temp in Steam 1200 F Max Pressure for Pumps 125 PSI Max Pressure for Valves 2500 PSI Max Shaft Speed 4400 Ft/Min pH Range 0 to 14 For Use In Pumps/Valves Application Good Choice for Boiler Feed and Condensate Pumps and Also Chemical and Petrochemical Applications