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- – 4-month term
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Friday, Oct 30
At a glance
- Condition
- New
- Model
- BSL47C25AT
- Weight
- 0.83 kg
- Item Volume
- 250 ml
- Package Information
- Bottle
- Item Form
- Liquid
Features 5
- Includes pH 4.0, pH 7.0, and 2.77 EC conductivity solutions to fully calibrate and verify your pH and EC/PPM meters for consistent, reliable measurements
- Regular calibration helps eliminate inaccurate readings that can impact plant health, nutrient balance, and water quality in hydroponics
- Designed to confirm probe performance after cleaning, ensuring your meters are functioning correctly and delivering dependable results every time
- Designed to confirm probe performance after cleaning, ensuring your meters are functioning correctly and delivering dependable results every time
- Each solution comes in a 250 ml bottle, ideal for routine maintenance, long-term use, and multiple calibrations
Description
250 ml of Calibration Solution pH 4.0, 7.0 and 2.77 EC Conductivity Solution.
Specs 12
| Brand | Bluelab |
|---|---|
| Item Weight | 0.83 kg |
| Item Volume | 250 ml |
| Package Information | Bottle |
| Item Form | Liquid |
| Container Type | Bottle |
| Volume | 250 ml |
| Brand Name | Bluelab |
| Manufacturer | Bluelab |
| UPC | 748006945436 |
| Model Number | BSL47C25AT |
| Part Number | BSL47C25AT |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Oct 30
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Works good
Good quality, consistent solutions
Reviewed in the United States on June 29, 2026 by mark spence
good buy
seems to work fine.
Reviewed in the United States on January 30, 2026 by Jeffrey wirkus
a
great buy
Reviewed in the United States on January 7, 2026 by william
It works
It works like it should
Reviewed in the United States on September 12, 2025 by Owen
Good stuff
Works
Reviewed in the United States on February 26, 2025 by Silverback
Good product
Keeps the pens Calibrated and working well
Reviewed in the United States on November 5, 2024 by Paige
must have set
I like that they came in a set highly recommended!
Reviewed in the United States on May 25, 2022 by Gator
must have
a must have for your blue lab probes. ensures accuracy. easy to use. a little pricy but its top quality I've been using blue lab over 5 years without fail. if cared for properly the ph probe will last a year or longer. I've gone 2 yrs in some cases
Reviewed in the United States on January 16, 2026 by Luke /Becki