Phone: (519) 746-4761

Canadian Address:

169 Lexington Court, Unit I

Waterloo, ON, N2J 4R9


US Address:

Niagara Falls, NY 14305

Canadian/International ship from Waterloo; US orders from Buffalo, NY.

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Water Leak Testing Papers

Cobalt chloride test strips can detect water in hard to reach places like cracks & crevices; only $3.75 for one, save $$ on quantity; cheaper than "free" shipping.

Need something bigger? Large format cobalt chloride paper sheets are available to cut to the size you need.

See Details below for more applications.

Related Products

SKU: 33813-Co
Moisture detection paper strips; ~100/vial

PRICE BREAKS - The more you buy, the more you save.
Quantity1+2+ 3+ 10+ 100+ 
Price for each$3.75USD$3.50USD$3.25USD$2.75USD$1.75USD
Your savings- 6.67%13.33%26.67%53.33%

Quantity :

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Keep them well stoppered in their vial since exposure to 55% relative humidity or greater is sufficient to cause a slow color change. You can find more information at Cobalt Chloride: Colorful Moisture Detector

Note: The number of strips per pack or vial is approximate.

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