GroStar GS4-E replacement pH/EC combo electrode Lighting & Electrical Components pH Up and Down are

pH Up and Down are buffers composed of a weak base (Up) and weak acid (Down) designed to correct pH imbalances

Chloramine is really bad for plants and has no easy way to be remediated

Dual Functionality: Mixes nutrients and aerates your reservoir with a single pump

The biggest in our “Living Space” line HDG35 5x3x6 tent

Doubles Pure Water Output – Increases RO system efficiency

GroStar GS4-E replacement pH/EC combo electrode Lighting & Electrical Components pH Up and Down areDescription Product Details: AI58040 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 Specifications