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BOJACK 15 Pack of pH Meter Buffer Solution Powder for Precise and Easy PH Calibration, PH Calibration Powder Solution 4.01pH,6.86pH and 9.18pH

  • Based on 775 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Aug 20
Order within 3 hours and 26 minutes
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Features

  • Easy to use: Mix the buffer powder with 250ML distilled water, put the pH meter into the solution, stir gently, and wait for a few seconds to get the result.
  • Accuracy: The accuracy of the buffer at 25C is within 0.01 pH units, and it can remain stable for a long time. It is sealed in a durable moisture-proof individual packaging to keep it fresh until use.
  • Does not contain BPA, does not contain any other harmful and toxic chemicals
  • Package content: 15 packets of pH calibration package: 5*pH 4.01 solution powder, 5*pH 6.86 solution powder, 5*pH 9.18 solution powder, which can meet all pH requirements and is flexible in use.
  • Wide range of applications: testing the pH balance of drinking water, aquariums, swimming pools, spas or hydroponics

Description

Steps for usage Step 1: Open the package and pour the powder completely into a clean, dry glass container. Step 2: Add 250 ml of deionized water (or distilled water) to the container. (Preferably 250 ml calibration flask) Step 3: Stir until the powder is completely dissolved. Step 4: Calibrate your pH meter, put the pH meter into the solution, stir gently, and wait a few seconds. (Rinse the meter with pure water before testing) To ensure more accuracy, calibrate with 2 solutions, starting from 6.86, then 4.01 or 9.18. Specification: 54.01 solution (potassium hydrogen phthalate) 56.86 solution (mixed phosphate) 59.18 solution (borax) Note: It is not a drinkable solution, please keep it out of the reach of children aged 0-3!

Package Dimensions: ‎6.38 x 3.82 x 0.47 inches


Item Weight: ‎1.44 ounces


Manufacturer: ‎BOJACK


Item model number: ‎BJ-pH-469


Date First Available: ‎July 5, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Banner Critic
The buffer powder ain't no joke! It works great
Reviewed in the United States on May 30, 2026 by Matthew Banner

  • All you need
Works as expected
Reviewed in the United States on July 25, 2026 by kevin

  • Good valve
It was here almost the next day.
Reviewed in the United States on June 8, 2026 by Joe g

  • PH must have
A must have for PH testing calibration. Great value for the money, easy to use and accurate. A must have for hydroponics growers and gardeners alike. Good quality!
Reviewed in the United States on December 8, 2025 by Alexa

  • Good product!
Works fine for my kegland beverage doctor pH meter.
Reviewed in the United States on November 29, 2025 by Box was packed with out any padding. The CO2 cartridges were all loose in the box.

  • Essential as batteries for ph meters
The 15-pack Bojack pH calibration solutions are an excellent choice for anyone needing accurate pH calibration. The pack contains a wide range of pH solutions, allowing for precise calibration across various pH levels. The solutions come in convenient single-use packets, ensuring freshness and eliminating the need for measuring or mixing. The packaging is durable and easy to store, making it convenient for both professional and personal use. Overall, the 15-pack Bojack pH calibration solutions provide reliable and hassle-free pH calibration, making them a worthwhile investment for anyone working with pH-sensitive equipment. ... show more
Reviewed in the United States on September 14, 2023 by Jim

  • Great for first time users but not great for things the require perfect accuracy
Easy to use but find its accuracy isn’t great
Reviewed in the United States on April 5, 2026 by Travis Schmidt

  • Just what I needed
great price.. arrived quickly
Reviewed in the United States on June 7, 2025 by John

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