Description
The HI782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwater aquariums and marine applications. With a digital read out, there is no more struggling to determine colors visually.
![4 Pack - 4 Inch Ring Filter Socks 200 Micron - Aquarium Felt Filter Bags -4 Inch Ring by 16 Inches Long [Long Version] - Fits Eshopps…](https://m.media-amazon.com/images/I/71Ic3I+smML._AC_SL1500_.jpg)