ATO Float Valve medication HI783-25 are high quality reagents

HI783-25 are high quality reagents for use with the Hanna HI783 Marine Magnesium Checker

Factory Preset Temp: 77°F

Max Size 6"

And of course the feeders fit feeder openings on the VARILUX aquarium hoods

ATO Float Valve medication HI783-25 are high quality reagentsFits: REEFER Peninsula 650, REEFER Peninsula 650 A, REEFER Peninsula 500, MAX E 170, MAX S 400, MAX S 500, MAX S 650, MAX E 260, REEFER NANO, REEFER 170, REEFER XL 200, REEFER 250, REEFER 250 V3, REEFER XL 300, REEFER 350, REEFER 350 V3, REEFER XL 425, REEFER 350 V3A, REEFER XL 425 V3, REEFER XL 425 V3A, REEFER 450, REEFER XL 525, REEFER XL 525 V3, REEFER XL 525 V3A, REEFER XXL 625, REEFER XXL 625 A, REEFER XXL 750 2, REEFER XXL 750, REEFER XXL 750