General Hydroponics uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). General Hydroponics technicians check each batch to ensure that our solutions are precisely calibrated and yield reliable readings each time they are used.
|Lead Time||This product ships in 7-10 Business Days|
|Shipping Restrictions||AK, HI, WY|
Sign-up and save! Get exclusive discounts & the latest product releases.
Expert Advice Toll-Free
© 2011-2021 Hydrobuilder.com - 312 Otterson Dr STE D , Chico, CA 95928 USA
All trademarks and trade names are the property of their respective trademark holders.