The Aqualine 40 Litre Dehumidifier. Wage total war on excess moisture, and win.

• Powerful 180m3 Per Hour
• Free UK Delivery
• Less Than 53 Decibel Operation
• Improved Flowers & Flavour
• Covers a 30 / 40m2 Area 
• Eliminate Mould
• Perfect Drying & Curing

The Unsung Grow Room Hero.

If there's one thing that ruins a perfectly good indoor grow faster than forgetting to turn the lights on, it’s humidity. Left unchecked, it seeps into every corner, clings to your leaves, encourages mould, and turns your carefully cultivated space into a clammy jungle of disappointment. Which is exactly why the Aqualine 40 Litre Dehumidifier exists - to wage total war on excess moisture, and win.

From the British brains at Aqualine, a horticultural and hydroponics brand built by growers who’ve seen it all, this is the most powerful unit in their lineup - and it shows. It’s a proper bit of kit, designed for large rooms, aggressive humidity and people who are absolutely not messing about.

Function Over Faff.

This isn’t a gadget with flashy screens or AI gimmicks. This is a tool. It pulls up to 40 litres of water per day out of your air - that's the equivalent of a full household bathtub every 36 hours. Which means you’re not just removing humidity; you’re evicting it, permanently.

Set it to run continuously and it will churn away in the background, quietly and efficiently. Prefer things a bit more specific? Choose your desired relative humidity level and the Aqualine 40 Litre Dehumidifier will maintain it automatically - no babysitting required.

You can even set it to switch on or off at certain times, thanks to the programmable 24-hour timer. It’s like having your own climate butler, minus the posh accent.

Plug In. Switch On. Go. 

Installation? You plug it in. That’s it. No hoses, no venting nightmares. You can collect the water in the onboard 4-litre tank (ideal for smaller setups), or run a hose to a drain for non-stop drainage if you’re dealing with a more tropical situation.

When the tank fills, it lets out a friendly beep - not a shrill alarm - and shuts off automatically to avoid spillage. Want to go stealth? Quiet Mode dims the display and slows the fan so it hums along under 53 decibels - which is less than a casual conversation or a light rainstorm.

Designed For Grow Tents.

The Aqualine Dehumidifier isn’t some rebadged home appliance. This is purpose-built for indoor gardening. It’s compact enough to fit neatly into tight grow spaces, but powerful enough to regulate the environment in rooms up to 40 square metres. And with sturdy caster wheels, it’s mobile - because sometimes you do want to move it without dragging your setup apart.

It’s the largest model in Aqualine’s professional-grade lineup, making it the top-tier option for those managing full-room environments, flowering stages, or high transpiration crops.

Enhance Flavours. Eliminate Mould & Rot.

The Aqualine 40 Litre Dehumidifier is the piece of kit you didn’t know you absolutely needed. It doesn’t just stop mildew - it prevents it from ever happening. It stabilises your environment, boosts plant health, and lets your lighting, feeding, and airflow actually do their job.

If you’re serious about growing - herbs, flowers, veggies, whatever - and you’re sick of sticky, soggy, frustrating conditions, this is your answer.

Aqualine 40 Litre Dehumidifier - it doesn’t just dry the air. It rescues your grow.