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.

For a detailed quote including applicable taxes, proceed to checkout

Chlorophenol Red 8x10" Paper

Chlorophenol red detection paper indicates the presence of water with a bright red color; only $2.95 for one; quantity discounts. Not recommended for water that is below pH 5.5

Chlorophenol red sheets available in large format 24x20" (600x500mm). Mininum is a pack of 100 sheets. Other custom sizes also available, MOQ applies.

Cobalt Chloride Leak Detection Paper reacts at relative humidities above 55% so can detect water vapor as well as liquid water. Universal pH Water Leak Detection Paper also provides a permanent record and can indicate pH at the same time.

You can also see our blog about leak detection.

Click on the Details tab below for more information on this type of moisture test sheet & a view of use with spot plate leak detection.

Related Products

SKU: 33813-CR8
Chlorophenol Red Water Detection Sheet, 200x250mm (8x10")

$2.95USD or lower Each

Save More When You Buy More!
Quantity1+10+ 100+ 1000+ 
Price for each$2.95USD$2.60USD$2.25USD$1.90USD
Your savings- 11.86%23.73%35.59%
Quantity :

Related Products

 QuantityProduct/DescriptionPrice (EACH) 
Blue litmus paper-acid test; 8x10 Blue litmus paper-acid test; 8x10" sheets
Sku: 33810-B8
$1.95USD or lower
Red litmus paper-alkaline test; 8x10 Red litmus paper-alkaline test; 8x10" sheets
Sku: 33810-R8
$1.95USD or lower
Cobalt chloride sheet, 200x250mm (8x10 Cobalt chloride sheet, 200x250mm (8x10")
Sku: 33813-Co8
$2.95USD or lower
Water Detection-pH Sensitive Test Paper, 200x250mm (8x10 Water Detection-pH Sensitive Test Paper, 200x250mm (8x10")
Sku: 33813-U8
$2.95USD or lower

Current Reviews: 3

The water indicator paper sheets shown in the image are 8x10" (200x250mm). The native color of the sheets is yellow & the wetted sections turn red when exposed to liquid water. They are insensitive even to high humidity levels unlike the cobalt chloride papers.

Note: Chlorophenol red does NOT change color if the water is below pH 5.5. If you require a permanent record of water leakage at pH levels below this, we recommend the universal pH water indicator paper.

Click here for related information or images

Chlorophenol Red Spot Plate Leak Test,

5 Stars 2019-09-19

Fast shipping and working well to identify water leaks.

5 Stars 2019-01-29

This water detection paper worked well in identifying moisture intrusion during testing and was easily observable due to its high color contrast.

5 Stars 2018-02-08

Used this to detect where a leak was. Worked great!

Review this Product Now!

Rating *

Email address used when ordering this product. (Not displayed; used only for order confirmation)*

Display Name (e.g. First Name or nickname.)