Bluelab Sample Tube and Fittings

Bring your reservoir parameters closer Compatible with: Bluelab Guardian Monitor, Bluelab Guardian Monitor Connect, Bluelab Pro Controller Perfect for reservoirs located more than 2 metres / 6.6 feet from your controller unit. Place probes directly into the tube ports for direct measurement of nutrient solution Fittings included *The Bluelab Sample Tube is not intended for use in a high pressure system. Do not exceed 15 psi.