Apera GroStar GS3 EC Pen FX14026 this line of pumps fits

this line of pumps fits almost all hydroponic applications

The Quest Dual 155s are plug and play

or once plants stop growing vertically

6” W x 3

Apera GroStar GS3 EC Pen FX14026 this line of pumps fitsAI11030 GroStar GS3 EC PPM Temp Pen Lab grade instruments designed specifically for growers! Includes: 2 year warranty (instrument) 1 year warranty (probe) 2. 77 EC calibration solution, 50 ml bottle Features: Measures conductivity EC, PPM (500), PPM (700) and temperature Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance Titanium alloy sensor designed for high accuracy EC measurement Easy to use