Milwaukee MA887 Digital Salinity Refractometer with Hard Carrying Case for Refractometer 818201893259 the unit displays a green

the unit displays a green or red light

In water conditioning

The Gravity Water System uses a comprehensive long-contact filtration process for superior purification:

reliable three-way connections in reverse osmosis (RO) systems

7 (442™)

Milwaukee MA887 Digital Salinity Refractometer with Hard Carrying Case for Refractometer 818201893259 the unit displays a greenThousands of saltwater aquarium enthusiasts have dialed in the analysis with Milwaukee's salinity refractometer. No more visual readings. Get a digital readout within seconds accurate to 2 ppt with automatic temperature compensation (ATC). WHAT PEOPLE ARE SAYING "This is a terrific addition and you'll want a digital refractometer if you spend any time at all with saltwater aquariums. Highly recommended." "This is a must for any even remotely serious