Apera GroStar GS4-E Replacement pH/EC Combo Electrode DH5872 Larger pumps (250 GPH-1000 GPH)

Larger pumps (250 GPH-1000 GPH) have a ceramic shaft

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

Suitable for use in gardens

Optional Remote Monitors - DH18082 (Model 8082) Temperature/Humidity Sensor Module

This is important

Apera GroStar GS4-E Replacement pH/EC Combo Electrode DH5872 Larger pumps (250 GPH-1000 GPH)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