G.A.S EC Speed Fan Controller — Twin EC Fan Balance

G.A.S EC Speed Fan Controller — Dual EC Fan Pressure Balance

The controller that solves a specific grow-room problem: balancing intake and extract fan speeds to achieve the right negative pressure. Plugs directly into G.A.S's EC fan range, lets you independently set maximum speeds for each fan, and provides precise intake/outtake control. For growers running dual-fan ventilation setups where imbalance causes tent distortion or scent leaks.

Why growers choose the G.A.S EC Speed Fan Controller:

• Controls two EC fans independently — intake and extract set to different max speeds
• Balances fans for negative pressure — extract slightly faster than intake = tent-shaped, smell-contained
• Precise speed setting — not just on/off; infinite fine-tuning across the EC range
• Plugs directly into G.A.S EC fan range — no adaptors, guaranteed compatibility
• 12-month warranty — proper manufacturer cover, not a throwaway controller
• Entry-level EC control — most affordable way to get dual EC management

Who it's not for:

EC fans only — this won't work with AC fans like Krystal or standard RVK. For environmental automation (temperature-triggered speed), step up to the G.A.S Enviro Controller V2 or AC-EC controller. For single-fan setups, the AC1 or basic EC controller is cheaper.

Available to collect from our Stone shop at Unit 24, Emerald Way, ST15 0SR — or ships the same working day from our UK warehouse. Not sure if this is the right fit? Give us a ring on 01785 556355 or email sales@roots2riches.com — we're growers ourselves, happy to help.