Dear Mr. Anil,
I'm sorry for missed understanding.
K. Ponthapat advised you try Mergal K9N which is CMIT/MIT 1.5% works at pH range 3-9 and the price is cheaper than Mergal 174.
we don't have enough sample in our stock but we already requested sample from supplier when we receive it, I will send it you ASAP.
If you have any questions/queries, please feel free to contact me.
Best Regards,
Preekamol K.