Can you reuse solutions?

Yes a couple of times but I wouldn’t pour it back in the bottle if you’ve used it already. For example I have 3 ph meters so I’ll put some of each in a cup and use the same solution to calibrate all 3 of my ph meters then toss the solution. The bottles last a long time though.

The bottle doesn’t specify how much solution to add to how much water to make the ph 7.0 and 4.0 solutions. It just says add the required amount???

You don't add anything its pre made to the ph level.

Can i use this solution for other brand ph meters ? i own a adwa ph meter, or is this only for bluelab products ?

It will work for all PH meters.

How often would I expect to run out of solution? I would hope for $45.00 this would last a t least a year.

I believe it will last a year I Calibrate my pen whenever it goes out of calibration which is usually about once a month

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Bluelab pH 4.0 & 7.0 Calibration Solution (500ml)

Bluelab pH 4.0 & 7.0 Calibration Solution (500ml)

Product ID: 712457668

Details

Brand
Bluelab
Item form
Liquid
Item volume
500
Manufacturer
Bluelab
Package information
Bottle

📏500ml long-lasting supply

🧪Dual pH calibration (4.0 & 7.0)

⚗️Lab-grade precision

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COP 720324

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Description

⚡ Calibrate like a pro, grow like a legend!

EXTENDED SUPPLY - Generous 500ml bottle designed to last through years of monthly calibrations, saving you time and money.
LAB GRADE ACCURACY - Ensure your pH meter delivers precise, reliable readings every time with solutions referenced to high laboratory standards.
TRUSTED BY GROWERS - Join a community of hydroponic professionals who rely on Bluelab solutions to boost their crop quality and confidence.
OPTIMIZED PROBE CARE - Maintain your Bluelab Conductivity/Temperature probe’s cleanliness and longevity with dedicated calibration and cleaning solutions.
DUAL POINT CALIBRATION - Calibrate both acidic (pH 4.0) and neutral (pH 7.0) points for flawless measurement accuracy tailored to your grow environment.

The Bluelab pH 4.0 & 7.0 Calibration Solution (500ml) is a premium, lab-standard liquid designed specifically for Bluelab pH meters. It ensures precise dual-point calibration, extends the lifespan of your probes, and supports consistent, accurate readings essential for professional hydroponic and plant growth management.

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COP 720324

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In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Colombia.

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ASIN	B01GQVSQGG
Brand Name	Bluelab
Container Type	Bottle
Customer Reviews	4.7 4.7 out of 5 stars (1,091)
Item Form	Liquid
Manufacturer	Bluelab
Model Number	BL-COMBO-1
Part Number	BL-COMBO-1
Volume	500 Milliliters

Bluelab pH 4.0 & 7.0 Calibration Solution (500ml)

Details

Details

Description

Specifications

Common Questions