G.A.S Pro-Leaf CO2 Regulator — Bottled CO2 Delivery

G.A.S Pro-Leaf CO2 Regulator — Bottled CO2 Delivery System

The easiest way to add CO2 supplementation to a grow room — the Pro-Leaf Regulator fits directly onto a standard CO2 gas cylinder and uses a solenoid valve to release gas in controlled bursts. Controlled by the Pro-Leaf Controller (sold separately), it delivers exactly the CO2 ppm you've set, and stops when the target's hit.

Why growers choose the Pro-Leaf CO2 Regulator:

• Direct CO2 cylinder mount — screws onto standard bottle valves, no complex plumbing
• Solenoid valve control — precise release in controlled doses, no over-supplementation
• Pairs with the Pro-Leaf Controller — closed-loop control, responds to live CO2 ppm readings
• Alternative to LPG burners — cleaner, quieter, better for smaller grow rooms without LPG setups
• Lower fire risk than gas burners — no open flame, safer for indoor domestic spaces
• Simple and reliable — fewer mechanical parts to fail than a gas burner

Who it's not for:

You'll need a CO2 cylinder and the Pro-Leaf Controller — neither is included with the regulator. Bottled CO2 runs out fairly quickly in larger grow rooms (cost per m² higher than LPG burners) — for bigger setups, the Pro-Leaf LPG Burner is more economical. CO2 supplementation only makes sense with high-intensity lighting (600W+ per m²); normal light setups can't use the extra CO2.

See it running in our Stone shop. Drop by Unit 24, Emerald Way, Stone Business Park (ST15 0SR) to see this fixture set up, or call us on 01785 556355 (Mon–Fri, 10am–5pm) to talk through whether it's the right choice for your tent size and grow style. In stock now with 24hr UK dispatch, or choose click & collect at checkout.