Welcome to Grow Time.

Currently, We are In-Store Pick-Up only.

Collection:

pH, EC, TDS, and PPM Control

52 products
Please login to see the price
It is formulated with R/O and UV sterilized water and combine two pH adjusters for buffered effectiveness. It contains three electrolytes to help maintain osmotic balance.
Please login to see the price
HI70300-050 is a GroLine storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes. It is necessary to store a pH electrode...
Please login to see the price
 The HI98115 is a GroLine pH tester with advanced features for the measurement of pH in hydroponic nutrient solutions. The HI98115 is a very simple meter to operate with all functions including tur...
Please login to see the price
Advanced Nutrients pH Up is the most concentrated pH adjuster there is on the market. Perfect for larger reservoirs. DIRECTIONS: Use small amounts when adjusting the nutrient solution to affect the...
Please login to see the price
To maximize plant growth, the pH content of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5.5 and 6.5. Users of General Hydropon...
Please login to see the price
HI5036-012 is a quick calibration solution for use with Hanna's GroLine pH and/or EC/TDS meters. Using the Quick Cal function found in compatible meters allows for a single point calibration ...

Featured brands!