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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
A full sheet of A-OKs fit perfectly in a 10x20 flat
Intended to only be used with the Gavita EL3 Master Controller (sold separately) for external dimming control
and soil-less gardens
The botanicals are all food grade GRAS (Generally Recognized As Safe) materials
but you will experience much more stable pH levels
Bluelab pH Pen Cal Mag A full sheet of A-OKsA hardy, compact pH and temperature pen Perfect for quick and easy pH and temperature readings direct from your solution Fully waterproof not just water resistant Simple two point calibration process for accuracy One year peace of mind warranty Automatic temperature compensation for accurate readings everywhere Auto off function to extend battery life 1 AAA battery included simply power on and go
US$ 1497.50
US$ 29.99
US$ 317.50
US$ 26.50
US$ 29.99
US$ 14.00
