Propper Manufacturing STEAMPlus Sterilization Chemical Integrator Pack, 4 Inch, Class 4 (250/BX)

• These sterilization indicators are for use in steam autoclave cycles at 250 °F (121° C) and 273° F (134° C); they're an economical alternative to OK strips but use the same reactive ink as an OK strip.
• The correct endpoint is indicated when the entire length of the strip changes uniformly black.
• Nonuniformity of color is easily observed.
• There are 250 sterilization chemical indicator strips in a box.