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2" x 3" Three-Spot Humidity Indicator Card (Indicates 30-40-50% Humidity)

Item Number: 178-1-01 Actual Weight: 0.5 lb.
Located on Catalog Page 77.
In-stock Cans:
. In-stock items ship same-day.
Order by 7pm CT (6pm ET for our Harrisburg distribution center).

Backordered items ship separately as soon as they become available.
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# of Cans: 1 4 8
Price per Can: $37.15$34.15
(save 8%)
(save 16%)
 Made in USA

Card provides visual proof of the relative humidity level inside a package. As humidity increases or decreases the spots change color. Do not place card in direct contact with metal objects.