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Product details
Product Dimension:
20.32 x 20.32 x 15.24 cm
Shipping Weight: 1.25 Kg
SKU: 2823
Manufacturer: Bluelab
Average customer review: 4.4 out of 5 stars 18 customer reviews
Bestsellers Rank: #10 in Measuring Device
4.6
100% Authentic Customer Feedback
4.0 calibration solution
Excellent product to ph your meter; is needed if you have a blue lab ph pen and lasts a long time. However, compared to other solutions, this is on the expensive side. I will purchase again in the future since I have the bluelab ph pen and I like to use the right products to match the pen
very misleading photo, this is only the 4.0 reference buffer....why not just use an accurate photo?
What can I say? It successfully calibrated my Bluelab PH pen. It works as it should.
Sealed perfectly works perfectly
Can't go wrong with bluelab.
Grest product
Works great, would buy again
Way too expensive
This should be 13 dollars
Satisfied
Serve the purpose
very satisfied
works well
12>
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