Apera GroStar GS4-E Replacement pH/EC Combo Electrode DH5872 NOTE: Do Not use hydrogen

NOTE: Do Not use hydrogen peroxide or any chemical sterilizing agents when using Elite 91 ROOTS

When needed

This is important

The trellis netting has 3

Breathable mesh allows for maximum air circulation so flowers and herbs dry fast

Apera GroStar GS4-E Replacement pH/EC Combo Electrode DH5872 NOTE: Do Not use hydrogenAI58040 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