Apera GroStar GS4-E Replacement pH/EC Combo Electrode GMGP886 These highly reliable CO2 generators

These highly reliable CO2 generators feature powder-coated steel enclosures that resist moisture

Each container of BOND THREE Lap Tray Sealant yields 16

since coco is known to “hold” K

It features a rounded outer blade to minimize knicks and damage to areas of the plant that you don't want to cut

Apera GroStar GS4-E Replacement pH/EC Combo Electrode GMGP886 These highly reliable CO2 generatorsAI58040 GroStar GS4 E replacement pH EC combo electrode Measures pH, conductivity (EC and PPM) and temperature Combo probe built with lithium glass membrane and titanium alloy to ensure high accuracy and durability Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance double junction structure uses blue gel electrolyte without the air bubble 1 year warranty