Two Pack: Hanna Instruments HI 755-26 Checker HC Alkalinity Reagent for 50 tests

Expired 2 months after receiving them.

Nice product!

Received the wrong items. Were supposed to be for saltwater environments, but received for fresh water. Could have cost me thousands in corals. Not happy!

Does what it should.

Returning this... The picture shows a 2 pack of Marine reagent, but the item for sale is actually freshwater

A continued necessity if using the checker.

Accurate and easy to use

Worked as advertise for alkalinity checker