Hanna (HI758) Marine Calcium Checker Test Kit - Saltwater Aquariums Drain Line Flow Controls 5" Big Blue radial flow

5" Big Blue radial flow carbon filter that uses granular activated carbon (GAC) to remove chlorine

protecting chemical supply from contamination and system components from reverse flow

The integrated flush valve allows you to purge collected sediment in seconds without tools or disassembly

and specialty point-of-use systems requiring VOC and pesticide reduction

5" Big Blue housings and serves as a general-purpose carbon filter in whole-house water filtration systems

Hanna (HI758) Marine Calcium Checker Test Kit - Saltwater Aquariums Drain Line Flow Controls 5" Big Blue radial flowHanna Instruments Marine Testing HI758 Marine Calcium Checker Test Kit Precision colorimetric calcium testing for saltwater aquariums using the Zincon method with pre measured reagents 200 600 ppm Range 25 Tests Included Pre Measured Reagents Lot Numbered The HI758 Marine Calcium Checker delivers fast, accurate calcium measurements for reef aquarium maintenance using Hanna's proven colorimetric technology. Each kit includes 25 tests with pre measured