Description

Growing the best crops hydroponically is a precise art, so make sure you get accurate readings every time with the General Hydroponics 1 quart 1500 ppm Standard Reference Solution. This calibration solution is an amazing choice for ensuring your hydroponic garden is at the NaCl level it needs to flourish.

• Compatible with many popular brands of meters using NaCl scale
• Each batch checked by technicians to ensure exact calibration
• EC and PPM conductivity meters only