Class 4 Chemical Integrator Strips for Steam Sterilizers - 250 Pack

Strip size : 12mm (1/2") wide x 10cm (4") long

Steam Indicator Strips Change Color When Sterilized

Shows a distinctive blue to black color change that is not reversible. Indicated for use in gravity and vacuum cycles.

If your autoclave pouch does not have internal indicators - placing this inside the pouch will provide you with an internal indicator.