HiMediaGRM3903-500G Calcium Nitrate Tetrahydrate, ACS, 500 g

The bottle showed up nicely wrapped and exactly as advertised. The product was not some garbage labeled as acs grade it was very high quality. I do wish there was a higher weight available for purchase but 500g still satisfies my needs. Definitely will purchase again and again no question.

Great quality, amazing price, and a nice package with an internal plastic seal to keep the contents dry.

The salt had clumped into one large tough mass which had to be chipped apart in order to remove from the bottle

Great quality, reasonable price. Highly recommended.