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A400 Water Ozonizer
  • A400 Water Ozonizer
A400 Water Ozonizer

A400 Water Ozonizer – Chemical-Free Tank Sterilizer & Oxygen Booster

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The A400 Water Ozonizer is the ultimate solution for keeping your irrigation tank free of bacteria, microbes, and germs without using harsh chemicals. Producing 400 mg/h of ozone, it sterilizes your water up to 5 times better than UV lamps while boosting oxygen levels for maximum nutrient absorption. Perfect for clean, explosive growth!
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The A400 Water Ozonizer is a powerful, chemical-free sterilization system designed to eradicate bacteria and microbes from your irrigation tank while supercharging your water with pure oxygen for explosive plant growth.

Are you tired of dealing with nasty algae, root rot, and invisible pathogens ruining your nutrient reservoir?

Nothing kills a perfect grow faster than a contaminated water supply. When harmful bacteria and germs take over your tank, your plants suffer from nutrient lockout, stunted growth, and diseases that can wipe out months of hard work. Relying on chemical cleaners often messes up your pH and harms your delicate root zone, leaving you frustrated and your plants stressed.

Enter the A400 Water Ozonizer. This compact beast naturally purifies your water, proving 1.5 to 5 times more effective than UV lamps at destroying pathogens. It keeps your reservoir pristine without altering the pH or requiring a single drop of chemical additives, giving you the ultimate clean slate for your roots.

Pure Water and Maximum Nutrient Absorption for Your Plants

By injecting ozone directly into your water supply, you are not just cleaning it; you are upgrading it. The extra oxygen molecules enrich the nutrient solution, making it incredibly easy for your plants' roots to absorb exactly what they need. Whether you are running a complex setup from our Hydroponic and Aeroponic Systems or a simple soil drip, highly oxygenated water translates to faster vegetative growth, thicker stems, and heavier yields.

Plus, you get the peace of mind knowing your water is 100% sterile. No more worrying about temperature spikes breeding nasty microbes in your tank. You can finally focus on pushing your plants to their absolute limits.

How to Install and Use the A400 Water Ozonizer

Setting up this device is a breeze, but timing is everything to get the perfect balance of sterilization and oxygenation.

  1. Placement: Position the ozonizer outside your water tank in a dry, safe spot, and drop the output hose with the diffuser stone directly into the nutrient solution.
  2. Timer Setup: Connect the device to an indoor light timer. This is crucial for automated, hassle-free operation.
  3. Dialing the Schedule: Program the timer to activate the ozonizer for exactly 15 minutes every 2 to 3 hours. This prevents over-ozonation while keeping pathogens completely at bay.
  4. Nutrient Mixing: Add your fertilizers as usual. The ozone will not negatively interact with mineral nutrients, but remember not to use it if you rely on a biofilter or beneficial organic bacteria, as the ozone will wipe them out too!

Key Advantages and Benefits of the A400 Ozonizer

  • 400 mg/h Ozone Production: Delivers a highly concentrated dose of O3, which means your water is sterilized up to 5 times faster and more effectively than standard UV lamps.
  • Chemical-Free Purification: Cleans the water using only natural ozone, giving you the advantage of zero toxic residues, which means your plants' roots stay healthy and your pH remains perfectly stable.
  • Oxygen-Enriched Output: Breaks down into pure oxygen after neutralizing pathogens, allowing your nutrient solution to hold more dissolved O2, which means your plants absorb food faster for explosive growth.
  • Low Power Consumption (10W): Operates on minimal electricity, keeping your energy bills low, which means you can run it 24/7 on its timer schedule without worrying about extra costs.
  • Ultra-Quiet Operation (35 dB): Runs at a whisper-quiet volume, maintaining the stealth of your grow room, which means you won't be bothered by annoying buzzing sounds while chilling with your plants.

Maintenance and Care Tips

To keep your A400 running like a champion, make sure the unit itself stays dry and well-ventilated. Never submerge the main machine in water! Check the air stone periodically; if it gets clogged with mineral buildup from your fertilizers, simply soak it in a mild cleaning solution or replace it to maintain optimal bubble diffusion.

As a top-tier best ozone generator, it requires very little maintenance as long as it is kept away from direct moisture. Just set your timer and let it work its magic.

Frequently Asked Questions

Does the A400 Water Ozonizer alter the pH of my nutrient solution?

No, one of the biggest advantages of using ozone is that it purifies the water and increases oxygen levels without causing any fluctuations in your pH levels. You won't need to constantly adjust your reservoir.

Can I use this ozonizer with organic fertilizers or biofilters?

It is not recommended. Ozone is a powerful sterilizer that does not distinguish between bad pathogens and beneficial bacteria. If you use a biofilter or rely on living microbes in your soil or water, the ozone will eliminate them.

How long should I leave the ozonizer running?

You should never leave it running continuously. The sweet spot is setting it on a timer to run for 15 minutes every 2 or 3 hours. This provides perfect sterilization without over-saturating the water.

Personal Experience of Pevgrow’s CEO (Alan)

I've seen plenty of crops go south because of nasty root rot and contaminated reservoirs, especially in deep water culture setups. When I first tested the A400 Water Ozonizer, I was blown away by how crystal clear the water stayed. It completely eliminated that swampy smell you sometimes get in hydroponic tanks. The fact that it pumps extra oxygen directly to the roots is a massive game-changer; I noticed thicker, whiter roots within just a few days of use.

The only downside? You absolutely cannot use it if you're brewing compost teas or running beneficial microbes, because this thing is a ruthless killer of all bacteria. But if you're running a sterile mineral setup, this is hands down the best investment you can make to protect your crop. Just hook it up to a reliable timer, set it for 15 minutes every couple of hours, and let it do the heavy lifting.



  • Is the shipping discreet?

    Yes, the shipment is 100% discreet, no one will know what you have bought, also the sender is SITE OF SHOPS ONLINE.

  • Do you ship worldwide?

    Yes, we ship to almost every country in the world although you need to know the current legislation in your country to make sure that you do not break any regulations with the germination of the seeds.

    UK: 3-4 days (express)
    USA: 4-5 days (express)
    Australia: 4-5 days (express)
    Japan: 4-5 days (express)
    Canada: 4-5 days (express)
    South Africa: 4-5 days (express)
    New Zealand: 5-7 days (express)
    View all

    The customer must be informed about the laws of their country regarding seeds or other products that may be purchased on our website, the possession of which may constitute a criminal offence in the country of receipt.

    We cannot be made responsible for the wrong use that some people decide to give to the seeds, so please don't act against your national laws.

    Due to problems with customs you can check here for restrictions to certain countries.

  • What payment methods and currencies do you accept?

    We accept the following payment methods: Bank transfer, Cryptocurrencies, cash, credit and debit cards and cash on delivery (Spain, Belgium, France, Italy, Portugal).

    You can change the currency on the top right to know the price of the products in your local currency and of course pay this way.

  • How long does it take to ship my order?

    In 24/48 hours we will ship your order.

  • Are the seeds guaranteed to germinate?

    If you live in a country where the cultivation of cannabis is legal and you decide to plant the seeds, it is good that you know that all the seeds that we commercialize have germination guarantee.

    If you germinate with the method of paper napkins and you have followed all the steps that we indicate here, you will only have to return us the seeds not germinated in their original packaging and when we receive them we will proceed to the change.

    Then we take care of requesting the return to the seed bank, we do not transfer this responsibility and time to our customers.

  • What if I receive a bad or damaged product?

    If you receive a broken product due to transport, you have to notify us within 24 hours for insurance coverage, always contact us as soon as possible and we will fix the problem!

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