Ducting Y Joiner Emerald Harvest range the Bluelab pH Pen is

the Bluelab pH Pen is the trusted choice for growers who demand reliability and simplicity

Learn more about scientific research that supports the Front Row Ag A/B/Bloom formulation in our blog article Nitrate Vs Ammonium

24 neoprene disks in three different colours to identify different plant varieties and/or stages of propagation

AQUAplate Square fits into 1Pot and easy2grow trays

Built-in rechargeable battery backup: Retains settings through power outages

Ducting Y Joiner Emerald Harvest range the Bluelab pH Pen isA practical solution for merging two duct runs into one, 3 way Y duct connector is designed to maintain steady airflow while simplifying duct layouts. Manufactured from durable ABS plastic, it provides a secure, stable fit that helps preserve system integrity across ventilation, extraction, and hydroponic setups. Ideal For: HVAC installers working on ventilation and extraction systems Hydroponic growers managing air circulation and filtration Workshop