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Home » Saltwater Aquarium Supplies  » Testing Equipment  » Calibration Solution  »  pH 4.0 Buffer/Calibration Solution 500 ml
pH 4.0 Buffer/Calibration Solution 500 ml

pH 4.0 Buffer/Calibration Solution 500 ml

Average Rating 5 12
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pH 4.0 Buffer/Calibration Solution 500 ml Information




Calibration solution for pH monitors or controllers. pH 4.0. 500mL.



**Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching under our Low Price Guarantee, please be certain the product you want to price match is the same make and model.




Manufacturer Info

Captive Purity manufactures water filtration and water testing supplies for marine and reef aquaria. The brand is best known for their high-quality line of reverse osmosis filter systems and accessories. Captive Purity also produces refractometers for testing salinity, portable pen-sized meters for testing pH as well as replacement filter media for their RO and RO/DI filter systems.

pH 4.0 Buffer/Calibration Solution 500 ml Reviews



Average Rating
(12 reviews)
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This works

by
Reviewers Rating Excellent!


Posted: 8/18/2012 from HAMPSTEAD, MD UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: Hi, How much can I say about this product other then it works as advertized. It comes in a nice container so it stays fresh.


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very accurate

by
Reviewers Rating Excellent!


Posted: 8/19/2011 from Bakersfield, CA UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: I purchase both the 7.0 and the 4.0 ph calibration solution and they are very accurate.and what's good about both you can store them in a cool place and use them over.


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Ph buffers

by
Reviewers Rating Great


Posted: 11/1/2010 from SAN JOSE, CA UNITED STATES
4.0 5
Experience Level: Intermediate


Comments: Web access was great, order process great, delivery was right on time.


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Easy to use

by
Reviewers Rating Excellent!


Posted: 12/27/2009 from Henderson, NV
5.0 5
Experience Level: Expert


Comments: I'd never buy those tiny little packets over this. Sometimes more is better, and this is really one of those times!


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Good deal

by
Reviewers Rating Excellent!


Posted: 11/15/2009 from NORTHRIDGE, CA UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: A good reagent and the price is right. Perfect for calibration of any Ph probe.


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Sure beats the little packs

by
Reviewers Rating Excellent!


Posted: 9/26/2008 from DAYTON, OH UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: This is a very large bottle that will last a long time. Much easier then the little packets


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Buffer/Calibration Solution

by
Reviewers Rating Excellent!


Posted: 5/16/2008 from SOUTH CHINA, ME UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: A must for calibration.


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Buffer/Calibration Solution

by
Reviewers Rating Excellent!


Posted: 5/16/2008 from SOUTH CHINA, ME UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: A must for calibration.


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Great

by
Reviewers Rating Excellent!


Posted: 11/30/2007 from ALAMEDA, CA UNITED STATES
5.0 5
Experience Level: Expert


Comments: Great product! Calibrates right to 7.0! :D


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Does the job

by
Reviewers Rating Great


Posted: 11/30/2007 from CINCINNATI, OH UNITED STATES
4.0 5
Experience Level: Intermediate


Comments: I use this as a storage solution for my pH probe ... definitely cheaper than those little packets. Seems to do the job.


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