4 dKH solution for sale on ebay.

Left C

Lifetime Members
Sep 26, 2005
2,500
1
36
69
Burlington, NC
Item number: 230411668529

These are in 118 mL (4 fl oz) bottles. It doesn't contain the Bromothymol blue indicator solution.

The price is $5 plus $2.50 shipping.

It's about 2¢ per mL including shipping cheaper than some of the other products around. 2¢ per mL x 250 mL = $5 savings.
 
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