Phresh Hyper Fan Stealth Size:8" This unit monitors the room

This unit monitors the room and opens or closes the CO2 supply automatically to hold your target PPM

Simple idea

per manufacturer guidance

product-per-stage approach rather than a two-bottle grow/bloom system

Ready-to-use: Requires no reconstitution or preparation

Phresh Hyper Fan Stealth Size:8" This unit monitors the roomPhresh Hyper Fan Stealth V2 Quiet EC Extraction Fan with Industry Leading Efficiency Best for: Growers who need serious airflow without waking the neighbourhood, and want to cut energy costs at the same time Our thoughts This is a proper bit of kit. EC motor, acoustic shielding, half the power draw of standard fans and it actually lives up to the hype on noise. If you're growing somewhere where sound matters (loft space, shared walls, basically